Extension methods section doesn't show when the multiple extension methods with the same name exists in different namespaces.

For example:

https://docs.microsoft.com/en-us/dotnet/api/microsoft.codeanalysis.syntaxtoken?view=roslyn-dotnet

It only shows "IsKind(SyntaxToken, SyntaxKind)" from https://docs.microsoft.com/en-us/dotnet/api/microsoft.codeanalysis.csharpextensions.iskind?view=roslyn-dotnet#Microsoft_CodeAnalysis_CSharpExtensions_IsKind_Microsoft_CodeAnalysis_SyntaxToken_Microsoft_CodeAnalysis_CSharp_SyntaxKind_, but doesn't show https://docs.microsoft.com/en-us/dotnet/api/microsoft.codeanalysis.visualbasicextensions.iskind?view=roslyn-dotnet#Microsoft_CodeAnalysis_VisualBasicExtensions_IsKind_Microsoft_CodeAnalysis_SyntaxToken_Microsoft_CodeAnalysis_VisualBasic_SyntaxKind_.