Microsoft.CodeAnalysis.Editor.UnitTests.Completion.AbstractCompletionProviderTests<TWorkspaceFixture>.BaseVerifyWorkerAsync(System.String, System.Int32, System.Boolean, System.Char?, System.Boolean?, Microsoft.CodeAnalysis.SourceCodeKind, Microsoft.CodeAnalysis.Editor.UnitTests.Completion.AbstractCompletionProviderTests<TWorkspaceFixture>.ItemExpectation[], System.Collections.Generic.List<Microsoft.VisualStudio.Language.Intellisense.AsyncCompletion.Data.CompletionFilter>, Microsoft.CodeAnalysis.Completion.CompletionItemFlags?, Microsoft.CodeAnalysis.Completion.CompletionOptions, System.Boolean)