Microsoft\CSharp\RuntimeBinder\Semantics\Operators.cs (3)
97new BinOpSig (PredefinedType.PT_STRING, PredefinedType.PT_STRING, BinOpMask.Add, 2, BindStrBinOp, OpSigFlags.Reference, BinOpFuncKind.StrBinOp ),
98new BinOpSig (PredefinedType.PT_STRING, PredefinedType.PT_OBJECT, BinOpMask.Add, 1, BindStrBinOp, OpSigFlags.Reference, BinOpFuncKind.StrBinOp ),
99new BinOpSig (PredefinedType.PT_OBJECT, PredefinedType.PT_STRING, BinOpMask.Add, 0, BindStrBinOp, OpSigFlags.Reference, BinOpFuncKind.StrBinOp ),