Microsoft.CodeAnalysis.RemoveUnusedMembers.AbstractRemoveUnusedMembersDiagnosticAnalyzer<TDocumentationCommentTriviaSyntax, TIdentifierNameSyntax>.HandleNamedTypeSymbolStart(Microsoft.CodeAnalysis.Diagnostics.SymbolStartAnalysisContext, System.Action<Microsoft.CodeAnalysis.ISymbol, Microsoft.CodeAnalysis.ValueUsageInfo>)