34nullableWarnings.Add(GetId(ErrorCode.WRN_NullabilityMismatchInArgument)); 455case ErrorCode.WRN_NullabilityMismatchInArgument: 1969or ErrorCode.WRN_NullabilityMismatchInArgument

12000ReportDiagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, 12017ReportDiagnostic(forOutput ? ErrorCode.WRN_NullabilityMismatchInArgumentForOutput : ErrorCode.WRN_NullabilityMismatchInArgument,

212case ErrorCode.WRN_NullabilityMismatchInArgument:

1107Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B1", "A<object?>", "y", "void C.F(A<object> x, A<object?> y)").WithLocation(8, 14), 1110Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("B2", "A<object>", "x", "void C.F(A<object> x, A<object?> y)").WithLocation(9, 11)); 1162Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("A", "I<object?>", "y", "void C.F(I<object> x, I<object?> y)").WithLocation(9, 14), 1165Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("B", "I<object>", "x", "void C.F(I<object> x, I<object?> y)").WithLocation(10, 11)); 1212Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b").WithArguments("B", "I<(object, object)>", "a", "void C.F(I<(object, object)> a, I<(object, object?)> b)").WithLocation(9, 11));

4076Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b").WithArguments("string?[]", "System.Span<string>", "arg", "void C.M1(Span<string> arg)").WithLocation(7, 17), 4079Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "a").WithArguments("string[]", "System.Span<string?>", "arg", "void C.M2(Span<string?> arg)").WithLocation(8, 9), 4082Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b").WithArguments("string?[]", "System.ReadOnlySpan<string>", "arg", "void C.M3(ReadOnlySpan<string> arg)").WithLocation(9, 17)); 4105Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b").WithArguments("System.Span<string?>", "System.ReadOnlySpan<string>", "arg", "void C.M1(ReadOnlySpan<string> arg)").WithLocation(7, 17)); 4128Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b").WithArguments("System.ReadOnlySpan<string?>", "System.ReadOnlySpan<object>", "arg", "void C.M1(ReadOnlySpan<object> arg)").WithLocation(7, 17));

35260Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "element1").WithArguments("Container<string?>", "Container<string>", "item", "void List<Container<string>>.Add(Container<string> item)").WithLocation(6, 26));

9605Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("C2<string?>", "C2Base<string>", "x", "Extensions1.extension(C2Base<string>)").WithLocation(19, 20) 17919Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("C1<C2?>", "C1<C2>", "y", "C1<C2> C1<C2>.operator &(C1<C2> x, C1<C2> y)").WithLocation(27, 15), 17922Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("C1<C2?>", "C1<C2>", "y", "C1<C2> C1<C2>.operator &(C1<C2> x, C1<C2> y)").WithLocation(30, 15) 18276Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("C1<C2?>", "C1<C2>", "x", "C1<C2> C1<C2>.operator &(C1<C2> x, C1<C2> y)").WithLocation(25, 10), 18279Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("C1<C2?>", "C1<C2>", "y", "C1<C2> C1<C2>.operator &(C1<C2> x, C1<C2> y)").WithLocation(26, 15) 26333Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("C2<string?>", "C2Base<string>", "x", "Extensions1.extension(C2Base<string>)").WithLocation(19, 18)

1616Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2").WithArguments("S<object>", "S<object?>", "o", "E.extension(ref S<object?>)").WithLocation(7, 5), 1619Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s3").WithArguments("S<object?>", "S<object>", "o", "E.extension(ref S<object>)").WithLocation(10, 5)); 1661Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2").WithArguments("S<object>", "S<object?>", "o", "E.extension(in S<object?>)").WithLocation(7, 5), 1664Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s3").WithArguments("S<object?>", "S<object>", "o", "E.extension(in S<object>)").WithLocation(10, 5) 2471Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "iNull").WithArguments("I<object?>", "I<object>", "t", "E.extension(I<object>)").WithLocation(4, 1), 2474Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "iNull").WithArguments("I<object?>", "I<object>", "t", "E.extension(I<object>)").WithLocation(5, 5)); 3977Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "First").WithArguments("System.Collections.Generic.List<string?>", "System.Collections.Generic.List<string>", "list", "ListExtensions.extension(List<string>)").WithLocation(15, 23)); 38548Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "o").WithArguments("(object, object)?", "(object?, object?)?", "o", "E.extension((object?, object?)?)").WithLocation(4, 5), 38551Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "o").WithArguments("(object, object)?", "(object?, object?)?", "o", "E.extension((object?, object?)?)").WithLocation(5, 1), 38554Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "o").WithArguments("(object, object)?", "(object?, object?)?", "o", "E.extension((object?, object?)?)").WithLocation(6, 1)); 38578Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "P").WithArguments("(object, object)?", "(object?, object?)?", "t", "E.extension((object?, object?)?)").WithLocation(3, 64)); 38631Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "P").WithArguments("(object, object)?", "(object?, object?)?", "t", "E.extension((object?, object?)?)").WithLocation(3, 64)); 38700Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "P").WithArguments("(object, object)?", "(object?, object?)?", "o", "E.extension((object?, object?)?)").WithLocation(4, 14)); 38748Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "o").WithArguments("(object, object)?", "(object?, object?)?", "o", "E.extension((object?, object?)?)").WithLocation(4, 1)); 38772Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "System.Nullable<System.ValueTuple<object, object>>").WithArguments("(object, object)?", "(object?, object?)?", "t", "E.extension((object?, object?)?)").WithLocation(3, 1)); 38797Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "System.Nullable<System.ValueTuple<object, object>>").WithArguments("(object, object)?", "(object?, object?)?", "t", "E.extension((object?, object?)?)").WithLocation(3, 5), 38800Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "System.Nullable<System.ValueTuple<object, object>>").WithArguments("(object, object)?", "(object?, object?)?", "t", "E.extension((object?, object?)?)").WithLocation(4, 1));

885Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "L(o2)").WithArguments("C<object>", "C<object?>", "index", "int C<object?>.this[C<object?> index]").WithLocation(11, 14), 888Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "L(o)").WithArguments("C<object?>", "C<object>", "index", "int C<object>.this[C<object> index]").WithLocation(13, 15) 5404Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C6()").WithArguments("C6", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(15, 11), 5407Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C7()").WithArguments("C7", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(16, 11), 5410Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C9()").WithArguments("C9", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(18, 11)); 5417Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C6()").WithArguments("C6", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(15, 11), 5420Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C7()").WithArguments("C7", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(16, 11), 5423Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C9()").WithArguments("C9", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(18, 11)); 5430Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C1()").WithArguments("C1", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(10, 11), 5433Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C3()").WithArguments("C3", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(12, 11), 5436Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C4()").WithArguments("C4", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(13, 11), 5439Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C6()").WithArguments("C6", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(15, 11), 5442Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C7()").WithArguments("C7", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(16, 11), 5445Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new C9()").WithArguments("C9", "Base<object?>", "b", "void Program.F(Base<object?> b)").WithLocation(18, 11)); 6520Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new object?[] { null }").WithArguments("object?[]", "object[]", "o", "MyAttribute.MyAttribute(params object[] o)").WithLocation(5, 5) 6543Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new object?[] { null }").WithArguments("object?[]", "object[]", "o", "MyAttribute.MyAttribute(object[] o)").WithLocation(5, 5) 6933Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new string?[]{ null }").WithArguments("string?[]", "string[]", "s", "MyAttribute.MyAttribute(string[] s)").WithLocation(8, 14) 6976Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"new []{ ""str"", null }").WithArguments("string?[]", "string[]", "s", "MyAttribute.MyAttribute(string[] s)").WithLocation(8, 14) 18885Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("I<object?>", "I<object>", "x", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(7, 11), 18888Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object>", "I<object?>", "y", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(8, 14), 18891Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object>", "I<object?>", "y", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(8, 17), 18894Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object>", "I<object?>", "y", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(10, 14), 18900Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("I<object>", "I<object?>", "y", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(10, 20), 18906Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object>", "I<object?>", "y", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(11, 14), 18909Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("I<object?>", "I<object>", "x", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(11, 20), 18915Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new[] { x, x }").WithArguments("I<object>[]", "I<object?>[]", "y", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(15, 14), 18918Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new[] { x, y, z }").WithArguments("I<object>[]", "I<object?>[]", "y", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(19, 14), 18924Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new[] { x, x }").WithArguments("I<object>[]", "I<object?>[]", "y", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(20, 14), 18927Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("I<object?>", "I<object>", "x", "void C.G(I<object> x, params I<object?>[] y)").WithLocation(20, 33) 19578Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x1").WithArguments("CL0<string?>", "CL0<string>", "x", "void C.M1(ref CL0<string> x)").WithLocation(12, 16), 19584Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x3").WithArguments("CL0<string?>", "CL0<string>", "x", "void C.M3(CL0<string> x)").WithLocation(26, 12)); 36021Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2").WithArguments("C<string>", "C<string?>", "s", "void C<T>.M(ref C<string?> s)").WithLocation(9, 15)); 38849Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "i").WithArguments("I<object>", "I<object?>", "x", "void C.ThrowIfNull(I<object?> x, string? s)").WithLocation(8, 21) 56639Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "map").WithArguments("C<string, string>", "C<string, string?>", "dictionary", "string? Extensions.GetOrAdd<string, string?>(C<string, string?> dictionary, string key, Func<string, string?> function)").WithLocation(13, 9), 56642Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "map").WithArguments("C<string, string>", "C<string, string?>", "dictionary", "string? Extensions.GetOrAdd<string, string?>(C<string, string?> dictionary, string key, Func<string, string?> function)").WithLocation(14, 9), 56645Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "map").WithArguments("C<string, string>", "C<string, string?>", "dictionary", "string? Extensions.GetOrAdd<string, string?>(C<string, string?> dictionary, string key, Func<string, string?> function)").WithLocation(15, 9) 58225Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x1 ?? y1").WithArguments("IIn<object>", "IIn<object?>", "x", "void C.FIn(IIn<object?>? x)").WithLocation(22, 14), 58228Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1 ?? x1").WithArguments("IIn<object>", "IIn<object?>", "x", "void C.FIn(IIn<object?>? x)").WithLocation(23, 14), 58237Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "FIn(x3) ?? FIn(y3)").WithArguments("IIn<object>", "IIn<object?>", "x", "void C.FIn(IIn<object?>? x)").WithLocation(34, 14), 58240Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "FIn(y3) ?? FIn(x3)").WithArguments("IIn<object>", "IIn<object?>", "x", "void C.FIn(IIn<object?>? x)").WithLocation(35, 14), 58243Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "FIn(x3) ?? FIn(y3)").WithArguments("IIn<object>", "IIn<object?>", "x", "void C.FIn(IIn<object?>? x)").WithLocation(37, 14), 61773Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("I<object>", "I<object?>", "y", "int C.this[I<string> x, I<object?> y]").WithLocation(7, 16), 61776Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<string?>", "I<string>", "x", "int C.this[I<string> x, I<object?> y]").WithLocation(15, 16)); 61804Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("B<object?>", "A<object>", "item", "void List<A<object>>.Add(A<object> item)").WithLocation(11, 13)); 62749Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new { x = y, y = x }").WithArguments("<anonymous type: T? x, T y>", "<anonymous type: T x, T? y>", "y", "void Program.F<<anonymous type: T x, T? y>>(<anonymous type: T x, T? y> x, <anonymous type: T x, T? y> y)").WithLocation(9, 25), 62752Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new { x = y, y = x }").WithArguments("<anonymous type: T? x, T y>", "<anonymous type: T x, T? y>", "y", "void Program.F<<anonymous type: T x, T? y>>(<anonymous type: T x, T? y> x, <anonymous type: T x, T? y> y)").WithLocation(11, 33), 62755Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "new { x, y }").WithArguments("<anonymous type: T x, T? y>", "<anonymous type: T? x, T y>", "y", "void Program.F<<anonymous type: T? x, T y>>(<anonymous type: T? x, T y> x, <anonymous type: T? x, T y> y)").WithLocation(13, 33)); 68643Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "c").WithArguments("C<string?>", "C<string>", "c", "CustomHandler.CustomHandler(int literalLength, int formattedCount, C<string> c)").WithLocation(7, 1) 68900Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "c").WithArguments("C<string?>", "C<string>", "c", "CustomHandler.CustomHandler(int literalLength, int formattedCount, C<string> c)").WithLocation(7, 5) 73763Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("B<object>", "A<object?>", "a", "void C.G(A<object?> a)").WithLocation(18, 11) 73797Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("B<object?>", "A<object>", "a", "void C.G(params A<object>[] a)").WithLocation(16, 11) 73997Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object>", "I<object?>", "x", "void C.G(I<object?> x, IIn<object?> y, IOut<object?> z)").WithLocation(8, 11), 74000Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("IIn<object>", "IIn<object?>", "y", "void C.G(I<object?> x, IIn<object?> y, IOut<object?> z)").WithLocation(8, 14), 74003Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object?>", "I<object>", "x", "void C.F(I<object> x, IIn<object> y, IOut<object> z)").WithLocation(12, 11), 74006Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("IOut<object?>", "IOut<object>", "z", "void C.F(I<object> x, IIn<object> y, IOut<object> z)").WithLocation(12, 17)); 74066Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object>", "I<object?>", "x", "void C.G(ref I<object?> x, ref IIn<object?> y, ref IOut<object?> z)").WithLocation(8, 15), 74069Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("IIn<object>", "IIn<object?>", "y", "void C.G(ref I<object?> x, ref IIn<object?> y, ref IOut<object?> z)").WithLocation(8, 22), 74072Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("IOut<object>", "IOut<object?>", "z", "void C.G(ref I<object?> x, ref IIn<object?> y, ref IOut<object?> z)").WithLocation(8, 29), 74075Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object?>", "I<object>", "x", "void C.F(ref I<object> x, ref IIn<object> y, ref IOut<object> z)").WithLocation(12, 15), 74078Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("IIn<object?>", "IIn<object>", "y", "void C.F(ref I<object> x, ref IIn<object> y, ref IOut<object> z)").WithLocation(12, 22), 74081Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("IOut<object?>", "IOut<object>", "z", "void C.F(ref I<object> x, ref IIn<object> y, ref IOut<object> z)").WithLocation(12, 29)); 74106Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object>", "I<object?>", "x", "void C.G(in I<object?> x, in IIn<object?> y, in IOut<object?> z)").WithLocation(8, 14), 74109Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("IIn<object>", "IIn<object?>", "y", "void C.G(in I<object?> x, in IIn<object?> y, in IOut<object?> z)").WithLocation(8, 20), 74112Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object?>", "I<object>", "x", "void C.F(in I<object> x, in IIn<object> y, in IOut<object> z)").WithLocation(12, 14), 74115Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("IOut<object?>", "IOut<object>", "z", "void C.F(in I<object> x, in IIn<object> y, in IOut<object> z)").WithLocation(12, 26)); 74171Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object>", "I<object?>", "o", "void E.F2A(I<object?> o)").WithLocation(17, 9), 74174Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("I<object?>", "I<object>", "o", "void E.F2B(I<object> o)").WithLocation(20, 9), 74177Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("IIn<object>", "IIn<object?>", "o", "void E.F3A(IIn<object?> o)").WithLocation(26, 9), 74180Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("IOut<object?>", "IOut<object>", "o", "void E.F4B(IOut<object> o)").WithLocation(38, 9)); 74258Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("I<object>", "I<object?>", "y", "object C.this[I<string> x, I<object?> y]").WithLocation(7, 16), 74261Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<string?>", "I<string>", "x", "object C.this[I<string> x, I<object?> y]").WithLocation(14, 16)); 75208Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("I<object?>", "I<object>", "x", "I<object> C.operator +(I<object> x, C y)").WithLocation(12, 9), 75217Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("IOut<object?>", "IOut<object>", "x", "IOut<object> C.operator +(IOut<object> x, C y)").WithLocation(22, 9) 79899Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("D<object?>", "D<object>", "key", "void D<int>.Add(D<object>? key, params D<object>?[] value)").WithLocation(19, 28), 79902Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("D<object?>", "D<object>", "key", "void D<int>.Add(D<object>? key, params D<object>?[] value)").WithLocation(19, 32), 79908Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("C<object>", "C<object?>", "key", "void C<int>.Add(C<object?> key, params C<object?>[] value)").WithLocation(9, 28), 79911Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("C<object>", "C<object?>", "key", "void C<int>.Add(C<object?> key, params C<object?>[] value)").WithLocation(9, 31) 80003Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("C<object?>", "I<object>", "o", "void E.F1(I<object> o)").WithLocation(7, 9), 80006Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("C<object>", "I<object?>", "o", "void E.F2(I<object?> o)").WithLocation(9, 9) 80134Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "c").WithArguments("List<string?>", "List<string>", "b", "void C.F(ref List<string> a, ref List<string>? b, ref List<string?> c, ref List<string?>? d)").WithLocation(10, 22), 80143Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "a").WithArguments("List<string>", "List<string?>", "d", "void C.F(ref List<string> a, ref List<string>? b, ref List<string?> c, ref List<string?>? d)").WithLocation(10, 36), 80191Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "c").WithArguments("List<string?>", "List<string>", "b", "void C.F(ref List<string> a, ref List<string>? b, ref List<string?> c, ref List<string?>? d)").WithLocation(15, 22), 80206Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "a").WithArguments("List<string>", "List<string?>", "d", "void C.F(ref List<string> a, ref List<string>? b, ref List<string?> c, ref List<string?>? d)").WithLocation(15, 36), 83915Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y)").WithArguments("(string x, string? y)", "(string, string)", "t", "void E.F1A((string, string) t)").WithLocation(16, 13), 83918Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y)").WithArguments("(object x, object? y)", "(object, object)", "t", "void E.F1C((object, object) t)").WithLocation(18, 13), 83933Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y)").WithArguments("(A<object> x, A<object?> y)", "(A<object>, A<object>)", "t", "void E.F2A((A<object>, A<object>) t)").WithLocation(31, 13), 83936Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y)").WithArguments("(A<object> x, A<object?> y)", "(A<object?>, A<object?>)", "t", "void E.F2B((A<object?>, A<object?>) t)").WithLocation(32, 13), 84426Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y)").WithArguments("(string x, string? y)", "(object, object)", "t", "void E.F1A((object, object) t)").WithLocation(11, 9), 84429Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y)").WithArguments("(A<object> x, A<object?> y)", "(I<object>, I<object>)", "t", "void E.F2A((I<object>, I<object>) t)").WithLocation(18, 9), 84432Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y)").WithArguments("(A<object> x, A<object?> y)", "(I<object?>, I<object?>)", "t", "void E.F2B((I<object?>, I<object?>) t)").WithLocation(19, 9), 84435Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y)").WithArguments("(B<object> x, B<object?> y)", "(IIn<object?>, IIn<object?>)", "t", "void E.F3B((IIn<object?>, IIn<object?>) t)").WithLocation(26, 9), 84438Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y)").WithArguments("(C<object> x, C<object?> y)", "(IOut<object>, IOut<object>)", "t", "void E.F4A((IOut<object>, IOut<object>) t)").WithLocation(32, 9)); 84486Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t1").WithArguments("(string x, string?)", "(object, object)", "t", "void E.F1A((object, object) t)").WithLocation(11, 9), 84489Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t2").WithArguments("(A<object>, A<object?>)", "(I<object>, I<object>)", "t", "void E.F2A((I<object>, I<object>) t)").WithLocation(18, 9), 84492Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t2").WithArguments("(A<object>, A<object?>)", "(I<object?>, I<object?>)", "t", "void E.F2B((I<object?>, I<object?>) t)").WithLocation(19, 9), 84495Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t3").WithArguments("(B<object>, B<object?>)", "(IIn<object?>, IIn<object?>)", "t", "void E.F3B((IIn<object?>, IIn<object?>) t)").WithLocation(26, 9), 84498Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t4").WithArguments("(C<object>, C<object?>)", "(IOut<object>, IOut<object>)", "t", "void E.F4A((IOut<object>, IOut<object>) t)").WithLocation(32, 9)); 84543Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t1").WithArguments("(string, string)?", "(string?, string?)?", "t", "void E.F1A((string?, string?)? t)").WithLocation(8, 9), 84546Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t2").WithArguments("(I<object?>, I<object?>)?", "(I<object>, I<object>)?", "t", "void E.F2B((I<object>, I<object>)? t)").WithLocation(16, 9), 84549Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t3").WithArguments("(IIn<object?>, IIn<object?>)?", "(IIn<object>, IIn<object>)?", "t", "void E.F3B((IIn<object>, IIn<object>)? t)").WithLocation(23, 9), 84552Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t4").WithArguments("(IOut<object?>, IOut<object?>)?", "(IOut<object>, IOut<object>)?", "t", "void E.F4B((IOut<object>, IOut<object>)? t)").WithLocation(30, 9)); 84575Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t").WithArguments("(string, (string, string)?)", "(object, (string?, string?)?)", "t", "void E.FA((object, (string?, string?)?) t)").WithLocation(5, 9)); 84691Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t1").WithArguments("(string, string)", "(string, string?)", "t", "string C.F<string>(ref (string, string?) t)").WithLocation(7, 15), 84694Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t3").WithArguments("(string?, string)", "(string, string?)", "t", "string C.F<string>(ref (string, string?) t)").WithLocation(11, 15), 84697Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t4").WithArguments("(string?, string?)", "(string, string?)", "t", "string C.F<string>(ref (string, string?) t)").WithLocation(13, 15)); 84766Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<(string, string)>", "I<(string, string?)>", "t", "string C.F<string>(I<(string, string?)> t)").WithLocation(9, 11), 84769Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("I<(string?, string)>", "I<(string, string?)>", "t", "string C.F<string>(I<(string, string?)> t)").WithLocation(11, 11), 84772Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "w").WithArguments("I<(string?, string?)>", "I<(string, string?)>", "t", "string C.F<string>(I<(string, string?)> t)").WithLocation(12, 11), 84775Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("IIn<(string, string)>", "IIn<(string, string?)>", "t", "string C.F<string>(IIn<(string, string?)> t)").WithLocation(17, 11), 84778Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("IIn<(string?, string)>", "IIn<(string, string?)>", "t", "string C.F<string>(IIn<(string, string?)> t)").WithLocation(19, 11), 84781Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "w").WithArguments("IIn<(string?, string?)>", "IIn<(string, string?)>", "t", "string C.F<string>(IIn<(string, string?)> t)").WithLocation(20, 11), 84784Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("IOut<(string, string)>", "IOut<(string, string?)>", "t", "string C.F<string>(IOut<(string, string?)> t)").WithLocation(25, 11), 84787Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("IOut<(string?, string)>", "IOut<(string, string?)>", "t", "string C.F<string>(IOut<(string, string?)> t)").WithLocation(27, 11), 84790Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "w").WithArguments("IOut<(string?, string?)>", "IOut<(string, string?)>", "t", "string C.F<string>(IOut<(string, string?)> t)").WithLocation(28, 11) 85544Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(y, x)").WithArguments("(object? y, object x)", "(object, object?)", "item6", "(object?, object, object?, object, object?, (object, object?), object, object, object?, object).ValueTuple(object? item1, object item2, object? item3, object item4, object? item5, (object, object?) item6, object item7, (object, object?, object) rest)").WithLocation(12, 13), 85547Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(x, y, y)").WithArguments("(object x, object?, object?)", "(object, object?, object)", "rest", "(object?, object, object?, object, object?, (object, object?), object, object, object?, object).ValueTuple(object? item1, object item2, object? item3, object item4, object? item5, (object, object?) item6, object item7, (object, object?, object) rest)").WithLocation(14, 13), 88696Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(y, x)").WithArguments("(string? y, string x)", "(string x, string? y)", "t", "C.C((string x, string? y) t)").WithLocation(9, 19), 88699Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(y, y)").WithArguments("(string?, string?)", "(string x, string? y)", "t", "C.C((string x, string? y) t)").WithLocation(10, 19)); 88725Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(y, x)").WithArguments("(string? y, string x)", "(string x, string? y)", "t", "object? C.this[(string x, string? y) t]").WithLocation(10, 15), 88728Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(y, y)").WithArguments("(string?, string?)", "(string x, string? y)", "t", "object? C.this[(string x, string? y) t]").WithLocation(11, 15), 88731Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "t").WithArguments("(string? y, string x)", "(string x, string? y)", "t", "object? C.this[(string x, string? y) t]").WithLocation(13, 15)); 88756Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(y, x)").WithArguments("(string? y, string x)", "(string, string?)", "item", "void List<(string, string?)>.Add((string, string?) item)").WithLocation(10, 13), 88759Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "(y, y)").WithArguments("(string?, string?)", "(string, string?)", "item", "void List<(string, string?)>.Add((string, string?) item)").WithLocation(11, 13)); 92266Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "c").WithArguments("C<string>", "C<string?>", "c", "IEnumerator<int> CExt.GetEnumerator<string?>(C<string?> c, string? t = null)").WithLocation(8, 27) 92925Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x1").WithArguments("I<string>", "I<string?>", "t", "string C.F1<string>(I<string?> t)").WithLocation(10, 12), 92928Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x2").WithArguments("I<string>", "I<string?>", "t", "string C.F2<string>(I<string?> t)").WithLocation(19, 12)); 93093Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("I<string?>", "I<string>", "y", "I<string> C.F<I<string>>(I<string> x, I<string> y)").WithLocation(8, 15), 93096Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("I<string?>", "I<string>", "x", "I<string> C.F<I<string>>(I<string> x, I<string> y)").WithLocation(10, 11) 93211Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x1").WithArguments("I<IOut<string?>>", "I<IOut<string>>", "x", "I<IOut<string>> C.F<I<IOut<string>>>(I<IOut<string>> x, I<IOut<string>> y)").WithLocation(9, 11), 93214Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x1").WithArguments("I<IOut<string?>>", "I<IOut<string>>", "y", "I<IOut<string>> C.F<I<IOut<string>>>(I<IOut<string>> x, I<IOut<string>> y)").WithLocation(11, 15) 93255Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<string?>", "B<string>", "x", "string C.F<string>(B<string> x, B<string> y)").WithLocation(8, 11), 93258Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<string?>", "B<string>", "y", "string C.F<string>(B<string> x, B<string> y)").WithLocation(10, 14) 93316Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "x", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(8, 11), 93319Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "y", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(8, 14), 93322Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "x", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(10, 11), 93325Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "z", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(10, 17), 93328Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "x", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(11, 11), 93331Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "x", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(12, 11), 93334Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "x", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(14, 11), 93337Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "y", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(16, 14), 93340Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "z", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(16, 17), 93343Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "y", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(17, 14), 93346Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "y", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(18, 14), 93349Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "z", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(19, 17), 93352Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "z", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(22, 17), 93355Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "y", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(26, 14), 93358Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?>", "B<object>", "z", "B<object> Program.F<B<object>>(B<object> x, B<object> y, B<object> z)").WithLocation(28, 17) 93398Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "CreateB(y)").WithArguments("B<string>", "B<string?>", "y", "string? C.F<string?>(string? x, B<string?> y)").WithLocation(9, 14) 93443Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "CreateB(x)").WithArguments("B<string?>", "B<string>", "y", "string C.F<string>(IIn<string> x, B<string> y)").WithLocation(13, 25) 93501Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("IIn<object?, string?>", "IIn<object, string>", "y", "IIn<object, string> C.F<IIn<object, string>>(IIn<object, string> x, IIn<object, string> y)").WithLocation(8, 15), 93504Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("IIn<object?, string?>", "IIn<object, string>", "x", "IIn<object, string> C.F<IIn<object, string>>(IIn<object, string> x, IIn<object, string> y)").WithLocation(10, 11), 93507Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y2").WithArguments("IOut<object?, string?>", "IOut<object, string?>", "y", "IOut<object, string?> C.F<IOut<object, string?>>(IOut<object, string?> x, IOut<object, string?> y)").WithLocation(21, 15), 93510Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y2").WithArguments("IOut<object?, string?>", "IOut<object, string?>", "x", "IOut<object, string?> C.F<IOut<object, string?>>(IOut<object, string?> x, IOut<object, string?> y)").WithLocation(23, 11) 93536Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("IOut<string?>", "IOut<object>", "y", "IOut<object> Program.F<IOut<object>>(IOut<object> x, IOut<object> y)").WithLocation(7, 14)); 93575Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "CreateIIn(x1)").WithArguments("IIn<IIn<string?>>", "IIn<IIn<string>>", "z", "IIn<string> Program.FIn<IIn<string>>(IIn<string> x, IIn<string> y, IIn<IIn<string>> z)").WithLocation(11, 21), 93578Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "CreateIIn(y2)").WithArguments("IIn<IOut<string>>", "IIn<IOut<string?>>", "z", "IOut<string?> Program.FIn<IOut<string?>>(IOut<string?> x, IOut<string?> y, IIn<IOut<string?>> z)").WithLocation(19, 21)); 93686Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("B<object?, string>", "B<object, string>", "x", "B<object, string> C.F<B<object, string>>(B<object, string> x, B<object, string> y)").WithLocation(13, 11), 93689Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("B<object, string?>", "B<object, string>", "y", "B<object, string> C.F<B<object, string>>(B<object, string> x, B<object, string> y)").WithLocation(13, 14), 93692Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("B<object?, string>", "B<object, string?>", "y", "B<object, string?> C.F<B<object, string?>>(B<object, string?> x, B<object, string?> y)").WithLocation(16, 14), 93695Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("B<object, string?>", "B<object, string>", "x", "B<object, string> C.F<B<object, string>>(B<object, string> x, B<object, string> y)").WithLocation(17, 11) 93742Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("IIn<B<object?, string>>", "IIn<B<object, string>>", "x", "B<object, string> C.F<B<object, string>>(IIn<B<object, string>> x, IIn<B<object, string>> y)").WithLocation(13, 11), 93745Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("IIn<B<object, string?>>", "IIn<B<object, string>>", "y", "B<object, string> C.F<B<object, string>>(IIn<B<object, string>> x, IIn<B<object, string>> y)").WithLocation(13, 14), 93748Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("IIn<B<object?, string>>", "IIn<B<object, string?>>", "y", "B<object, string?> C.F<B<object, string?>>(IIn<B<object, string?>> x, IIn<B<object, string?>> y)").WithLocation(16, 14), 93751Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("IIn<B<object, string?>>", "IIn<B<object, string>>", "x", "B<object, string> C.F<B<object, string>>(IIn<B<object, string>> x, IIn<B<object, string>> y)").WithLocation(17, 11) 94010Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("I<(object?, string?)>", "I<(object, string)>", "y", "I<(object, string)> C.F<I<(object, string)>>(I<(object, string)> x, I<(object, string)> y)").WithLocation(12, 15), 94013Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("I<(object?, string?)>", "I<(object, string)>", "x", "I<(object, string)> C.F<I<(object, string)>>(I<(object, string)> x, I<(object, string)> y)").WithLocation(14, 11), 94016Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y2").WithArguments("IIn<(object?, string?)>", "IIn<(object, string)>", "y", "IIn<(object, string)> C.F<IIn<(object, string)>>(IIn<(object, string)> x, IIn<(object, string)> y)").WithLocation(26, 15), 94019Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y2").WithArguments("IIn<(object?, string?)>", "IIn<(object, string)>", "x", "IIn<(object, string)> C.F<IIn<(object, string)>>(IIn<(object, string)> x, IIn<(object, string)> y)").WithLocation(28, 11), 94022Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x3").WithArguments("IOut<(object, string)>", "IOut<(object?, string?)>", "x", "IOut<(object?, string?)> C.F<IOut<(object?, string?)>>(IOut<(object?, string?)> x, IOut<(object?, string?)> y)").WithLocation(40, 11), 94025Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x3").WithArguments("IOut<(object, string)>", "IOut<(object?, string?)>", "y", "IOut<(object?, string?)> C.F<IOut<(object?, string?)>>(IOut<(object?, string?)> x, IOut<(object?, string?)> y)").WithLocation(42, 15)); 94137Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("I<string?>", "I<string>", "y", "string C.F<string>(I<string> x, I<string> y)").WithLocation(13, 15), 94140Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("I<string?>", "I<string>", "x", "string C.F<string>(I<string> x, I<string> y)").WithLocation(14, 11), 94207Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x1").WithArguments("I<string>", "I<string?>", "y", "string C.F<string>(I<string> x, I<string?> y)").WithLocation(12, 15), 94210Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("I<string?>", "I<string>", "x", "string C.F<string>(I<string> x, I<string?> y)").WithLocation(14, 11), 94213Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x1").WithArguments("I<string>", "I<string?>", "y", "string C.F<string>(I<string> x, I<string?> y)").WithLocation(14, 15), 94216Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("I<string?>", "I<string>", "x", "string C.F<string>(I<string> x, I<string?> y)").WithLocation(15, 11), 94219Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x2").WithArguments("IIn<string>", "IIn<string?>", "y", "string C.F<string>(IIn<string> x, IIn<string?> y)").WithLocation(23, 15), 94222Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x2").WithArguments("IIn<string>", "IIn<string?>", "y", "string C.F<string>(IIn<string> x, IIn<string?> y)").WithLocation(25, 15), 94322Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x7.A2").WithArguments("A<object?>", "A<object>", "x", "A<object> C.F<A<object>>(A<object> x, A<object> y)").WithLocation(30, 11), 94325Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y8.A2").WithArguments("A<object?>", "A<object>", "y", "A<object> C.F<A<object>>(A<object> x, A<object> y)").WithLocation(34, 18) 96885Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s").WithArguments("S", "(A, A?)?", "t", "void Program.F2((A, A?)? t)").WithLocation(16, 12)); 107921Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b2").WithArguments("ID<string>", "ID<string?>", "x", "void B.M1<ID<string?>>(ID<string?> x)").WithLocation(38, 25), 131408Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "a").WithArguments("A<object?>", "B", "b", "void Program.F(B b)").WithLocation(13, 11)); 131438Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b").WithArguments("B", "A<object?>", "a", "void Program.F(A<object?> a)").WithLocation(13, 11)); 133922Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "p").WithArguments("Pair<object, object?>", "Pair<object?, object>", "p", "void E.Deconstruct(Pair<object?, object>? p, out object x, out object? y)").WithLocation(12, 34), 134119Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b").WithArguments("B", "A<object?, object>", "a", "void E.Deconstruct(A<object?, object> a, out object? x, out object y)").WithLocation(15, 34), 134165Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "e").WithArguments("Pair<object, object?>", "Pair<object?, object>", "p", "void E.Deconstruct(Pair<object?, object> p, out object? x, out object y)").WithLocation(21, 40), 134174Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "e").WithArguments("Pair<object, object?>", "Pair<object?, object>", "p", "void E.Deconstruct(Pair<object?, object> p, out object? x, out object y)").WithLocation(26, 51), 134224Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "e").WithArguments("Pair<object, object?>", "Pair<object?, object>", "p", "void E.Deconstruct(Pair<object?, object> p, out object? x, out object y)").WithLocation(25, 40), 134233Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "e").WithArguments("Pair<object, object?>", "Pair<object?, object>", "p", "void E.Deconstruct(Pair<object?, object> p, out object? x, out object y)").WithLocation(30, 51), 136487Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "g").WithArguments("G<string?>", "G<string>", "o", "bool G<T>.M2(G<string> o)").WithLocation(8, 12), 136490Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "g").WithArguments("G<string?>", "G<string>", "o", "bool G<T>.M2(G<string> o)").WithLocation(14, 16), 138978Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<T>", "I<T?>", "x", "void C.Test2<T>(I<T?> x)").WithLocation(10, 15) 141740Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("C<T?>", "C<T>", "b", "C<T> C<T>.operator +(C<T> a, C<T> b)").WithLocation(44, 17), 141743Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("C<T>", "C<T?>", "b", "C<T?> C<T?>.operator +(C<T?> a, C<T?> b)").WithLocation(46, 17)); 141805Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("C<T?>", "C<T>", "b", "C<T> C<T>.operator -(C<T> a, C<T> b)").WithLocation(44, 17), 141808Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("C<T>", "C<T?>", "b", "C<T?> C<T?>.operator -(C<T?> a, C<T?> b)").WithLocation(46, 17)); 141873Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("C<T?>", "C<T>", "b", "C<T> C<T>.operator *(C<T> a, C<T> b)").WithLocation(47, 17), 141876Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("C<T>", "C<T?>", "b", "C<T?> C<T?>.operator *(C<T?> a, C<T?> b)").WithLocation(49, 17)); 141928Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("C<T?>", "C<T>", "b", "C<T> C<T>.operator +(C<T> a, C<T> b)").WithLocation(34, 17), 141931Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("C<T>", "C<T?>", "b", "C<T?> C<T?>.operator +(C<T?> a, C<T?> b)").WithLocation(36, 17)); 141982Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("C<T?>", "C<T>", "b", "C<T> C<T>.operator -(C<T> a, C<T> b)").WithLocation(33, 17), 141985Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("C<T>", "C<T?>", "b", "C<T?> C<T?>.operator -(C<T?> a, C<T?> b)").WithLocation(35, 17)); 142041Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "z").WithArguments("C<T?>", "C<T>", "b", "C<T> C<T>.operator *(C<T> a, C<T> b)").WithLocation(38, 17), 142044Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("C<T>", "C<T?>", "b", "C<T?> C<T?>.operator *(C<T?> a, C<T?> b)").WithLocation(40, 17)); 146610Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y").WithArguments("I<object?>", "I<object>", "y", "object I<object>.operator +(I<object> x, I<object> y)").WithLocation(12, 21), 146613Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<object>", "I<object?>", "y", "object? I<object?>.operator +(I<object?> x, I<object?> y)").WithLocation(13, 17) 146899Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "by").WithArguments("B<T>", "B<T?>", "b", "A<T?> A<T?>.operator +(A<T?> a, B<T?> b)").WithLocation(25, 15), 146902Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "bx").WithArguments("B<T?>", "B<T>", "b", "A<T> A<T>.operator +(A<T> a, B<T> b)").WithLocation(26, 15), 146908Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "ax").WithArguments("A<T?>", "A<T>", "a", "A<T> B<T>.operator *(A<T> a, B<T> b)").WithLocation(29, 10), 146914Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "ay").WithArguments("A<T>", "A<T?>", "a", "A<T?> B<T?>.operator *(A<T?> a, B<T?> b)").WithLocation(30, 10)); 146968Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "by").WithArguments("B<T>", "B<T?>", "b", "A<T?> A<T?>.operator +(A<T?> a, B<T?> b)").WithLocation(25, 16), 146971Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "bx").WithArguments("B<T?>", "B<T>", "b", "A<T> A<T>.operator +(A<T> a, B<T> b)").WithLocation(26, 16), 146980Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "ax").WithArguments("A<T?>", "A<T>", "a", "A<T> B<T>.operator *(A<T> a, B<T> b)").WithLocation(29, 10), 146986Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "ay").WithArguments("A<T>", "A<T?>", "a", "A<T?> B<T?>.operator *(A<T?> a, B<T?> b)").WithLocation(30, 10), 147050Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b1y").WithArguments("B1<T>", "B1<T?>", "b", "A1<T?> A1<T?>.operator +(A1<T?> a, B1<T?> b)").WithLocation(32, 16), 147053Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b1x").WithArguments("B1<T?>", "B1<T>", "b", "A1<T> A1<T>.operator +(A1<T> a, B1<T> b)").WithLocation(33, 16), 147062Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b2y").WithArguments("B2<T>", "B2<T?>", "b", "A2<T?> A2<T?>.operator *(A2<T?> a, B2<T?> b)").WithLocation(36, 16), 147065Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "b2x").WithArguments("B2<T?>", "B2<T>", "b", "A2<T> A2<T>.operator *(A2<T> a, B2<T> b)").WithLocation(37, 16)); 147112Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1y").WithArguments("S<T>", "S<T?>", "y", "S<T?> S<T?>.operator +(S<T?> x, S<T?> y)").WithLocation(20, 16), 147115Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1x").WithArguments("S<T?>", "S<T>", "y", "S<T> S<T>.operator +(S<T> x, S<T> y)").WithLocation(21, 16), 147124Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2y").WithArguments("S<T>", "S<T?>", "y", "S<T?> S<T?>.operator +(S<T?> x, S<T?> y)").WithLocation(22, 16), 147130Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2x").WithArguments("S<T?>", "S<T>", "y", "S<T> S<T>.operator +(S<T> x, S<T> y)").WithLocation(23, 16), 147139Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1y").WithArguments("S<T>", "S<T?>", "y", "S<T?> S<T?>.operator +(S<T?> x, S<T?> y)").WithLocation(24, 16), 147145Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1x").WithArguments("S<T?>", "S<T>", "y", "S<T> S<T>.operator +(S<T> x, S<T> y)").WithLocation(25, 16), 147154Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2y").WithArguments("S<T>", "S<T?>", "y", "S<T?> S<T?>.operator +(S<T?> x, S<T?> y)").WithLocation(26, 16), 147160Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2x").WithArguments("S<T?>", "S<T>", "y", "S<T> S<T>.operator +(S<T> x, S<T> y)").WithLocation(27, 16)); 147212Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1y").WithArguments("S<T>", "S<T?>?", "y", "S<T?>? S<T?>.operator +(S<T?> x, S<T?>? y)").WithLocation(21, 16), 147221Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2y").WithArguments("S<T>?", "S<T?>?", "y", "S<T?>? S<T?>.operator +(S<T?> x, S<T?>? y)").WithLocation(23, 16), 147224Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1x").WithArguments("S<T?>", "S<T>?", "y", "S<T>? S<T>.operator +(S<T> x, S<T>? y)").WithLocation(24, 16), 147227Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2x").WithArguments("S<T?>?", "S<T>?", "y", "S<T>? S<T>.operator +(S<T> x, S<T>? y)").WithLocation(25, 16), 147233Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1y").WithArguments("S<T>", "S<T?>", "y", "S<T?>? S<T?>.operator *(S<T?>? x, S<T?> y)").WithLocation(27, 16), 147236Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1x").WithArguments("S<T?>", "S<T>", "y", "S<T>? S<T>.operator *(S<T>? x, S<T> y)").WithLocation(28, 16), 147245Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1y").WithArguments("S<T>", "S<T?>", "y", "S<T?>? S<T?>.operator *(S<T?>? x, S<T?> y)").WithLocation(30, 16), 147248Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1x").WithArguments("S<T?>", "S<T>", "y", "S<T>? S<T>.operator *(S<T>? x, S<T> y)").WithLocation(31, 16)); 147297Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "ay").WithArguments("A<T>", "A<T?>", "y", "A<T?> A<T?>.operator &(A<T?> x, A<T?> y)").WithLocation(26, 20), 147300Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "by").WithArguments("B<T>", "A<T?>", "y", "A<T?> A<T?>.operator |(A<T?> x, A<T?> y)").WithLocation(28, 20), 147303Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "ax").WithArguments("A<T?>", "A<T>", "y", "A<T> A<T>.operator &(A<T> x, A<T> y)").WithLocation(29, 20), 147306Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "bx").WithArguments("B<T?>", "A<T>", "y", "A<T> A<T>.operator |(A<T> x, A<T> y)").WithLocation(31, 20) 147353Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1y").WithArguments("S<T>", "S<T?>", "y", "S<T?> S<T?>.operator &(S<T?> x, S<T?> y)").WithLocation(23, 21), 147356Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2y").WithArguments("S<T>", "S<T?>", "y", "S<T?> S<T?>.operator |(S<T?> x, S<T?> y)").WithLocation(25, 21), 147359Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s1x").WithArguments("S<T?>", "S<T>", "y", "S<T> S<T>.operator &(S<T> x, S<T> y)").WithLocation(26, 21), 147362Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "s2x").WithArguments("S<T?>", "S<T>", "y", "S<T> S<T>.operator |(S<T> x, S<T> y)").WithLocation(28, 21) 147479Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "Create(x)").WithArguments("StructAwaitable<object>", "StructAwaitable<object?>", "s", "TaskAwaiter Program.GetAwaiter(StructAwaitable<object?> s)").WithLocation(13, 15)); 147596Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "Create(x)").WithArguments("StructAwaitable1<object>", "StructAwaitable1<object?>", "s", "TaskAwaiter<bool> Program.GetAwaiter(StructAwaitable1<object?> s)").WithLocation(25, 33), 147599Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "Create(y)").WithArguments("StructAwaitable2<object?>", "StructAwaitable2<object>", "s", "TaskAwaiter Program.GetAwaiter(StructAwaitable2<object> s)").WithLocation(28, 33) 147647Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "Create(x)").WithArguments("StructAwaitable2<object>", "StructAwaitable2<object?>", "s", "TaskAwaiter Program.GetAwaiter(StructAwaitable2<object?> s)").WithLocation(25, 33), 147650Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "Create(y)").WithArguments("StructAwaitable1<object?>", "StructAwaitable1<object>", "s", "TaskAwaiter<bool> Program.GetAwaiter(StructAwaitable1<object> s)").WithLocation(28, 33) 152573Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<T>", "I<T?>", "t", "T A.F3<T>(I<T?> t)").WithLocation(9, 12), 152579Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<T>", "I<T?>", "t", "T? A.F4<T>(I<T?> t)").WithLocation(10, 12), 152617Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<T>", "I<T?>", "t", "T A.F3<T>(I<T?> t)").WithLocation(9, 12), 152623Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<T>", "I<T?>", "t", "T? A.F4<T>(I<T?> t)").WithLocation(10, 12), 152664Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<T>", "I<T?>", "t", "T A.F3<T>(I<T?> t)").WithLocation(9, 12), 152670Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<T>", "I<T?>", "t", "T? A.F4<T>(I<T?> t)").WithLocation(10, 12), 152740Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<T>", "I<T?>", "t", "T A.F3<T>(I<T?> t)").WithLocation(9, 12), 152746Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<T>", "I<T?>", "t", "T? A.F4<T>(I<T?> t)").WithLocation(10, 12), 152781Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<string>", "I<string?>", "t", "string A.F3<string>(I<string?> t)").WithLocation(9, 12), 152787Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x").WithArguments("I<string>", "I<string?>", "t", "string? A.F4<string>(I<string?> t)").WithLocation(10, 12), 153932Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y1").WithArguments("System.Collections.Generic.IEnumerable<T?>", "System.Collections.Generic.IEnumerable<T>", "e", "void C<T>.F1(IEnumerable<T> e)").WithLocation(10, 12), 153935Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y2").WithArguments("System.Collections.Generic.List<T?>", "System.Collections.Generic.IEnumerable<T>", "e", "void C<T>.F1(IEnumerable<T> e)").WithLocation(17, 12)); 154126Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "y6").WithArguments("I<T?>", "I<T>", "x", "void Program.FB<T>(ref I<T> x, ref I<T?> y)").WithLocation(29, 16), 154129Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x6").WithArguments("I<T>", "I<T?>", "y", "void Program.FB<T>(ref I<T> x, ref I<T?> y)").WithLocation(29, 24), 154132Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "x8").WithArguments("I<T>", "I<T?>", "x", "void Program.FB<T?>(ref I<T?> x, ref I<T?> y)").WithLocation(37, 20)); 159530Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "C1<string>.C1(C2<string> t)").WithLocation(10, 17), 159650Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C1<string>.Add(C2<string> t)").WithLocation(10, 22), 159653Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C1<string>.Add(C2<string> t)").WithLocation(12, 37), 159656Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"GetC2(""c1"")").WithArguments("C2<string>", "C2<string?>", "t", "void C1<string?>.Add(C2<string?> t)").WithLocation(15, 32), 159659Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"GetC2(""c2"")").WithArguments("C2<string>", "C2<string?>", "t", "void C1<string?>.Add(C2<string?> t)").WithLocation(17, 48) 159708Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(10, 22), 159711Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(12, 37), 159714Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"new() { GetC2(s), GetC2(""c1"")}").WithArguments("C1<string?>", "C1<string>", "c", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(15, 14), 159717Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "C1<string?>").WithArguments("C1<string?>", "C1<string>", "c", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(17, 22) 159869Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "C1<string>.C1(C2<string> t)").WithLocation(10, 17), 159989Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C1<string>.Add(C2<string> t)").WithLocation(10, 22), 159992Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C1<string>.Add(C2<string> t)").WithLocation(12, 53), 159995Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"GetC2(""c1"")").WithArguments("C2<string>", "C2<string?>", "t", "void C1<string?>.Add(C2<string?> t)").WithLocation(15, 32), 159998Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"GetC2(""c2"")").WithArguments("C2<string>", "C2<string?>", "t", "void C1<string?>.Add(C2<string?> t)").WithLocation(17, 65) 160047Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(10, 22), 160050Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(12, 53), 160053Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"new() { GetC2(s), GetC2(""c1"")}").WithArguments("C1<string?>", "C1<string>", "c", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(15, 14), 160056Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "C1<string?>").WithArguments("C1<string?>", "C1<string>", "c", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(17, 39) 160366Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C1<string>.Add(C2<string> t)").WithLocation(10, 24), 160369Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C1<string>.Add(C2<string> t)").WithLocation(12, 39), 160372Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"GetC2(""c1"")").WithArguments("C2<string>", "C2<string?>", "t", "void C1<string?>.Add(C2<string?> t)").WithLocation(15, 34), 160375Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"GetC2(""c2"")").WithArguments("C2<string>", "C2<string?>", "t", "void C1<string?>.Add(C2<string?> t)").WithLocation(17, 50) 160424Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(10, 24), 160427Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "GetC2(s)").WithArguments("C2<string?>", "C2<string>", "t", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(12, 39), 160430Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, @"new(dd) { GetC2(s), GetC2(""c1"")}").WithArguments("C1<string?>", "C1<string>", "c", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(15, 14), 160433Diagnostic(ErrorCode.WRN_NullabilityMismatchInArgument, "C1<string?>").WithArguments("C1<string?>", "C1<string>", "c", "void C.Add<string>(C1<string> c, C2<string> t)").WithLocation(17, 22)

352case ErrorCode.WRN_NullabilityMismatchInArgument: