Microsoft.CodeAnalysis.VisualBasic.Symbols.NamedTypeSymbol.BuildExtensionMethodsMap(System.Collections.Generic.Dictionary(Of System.String, Microsoft.CodeAnalysis.PooledObjects.ArrayBuilder(Of Microsoft.CodeAnalysis.VisualBasic.Symbols.MethodSymbol)), Microsoft.CodeAnalysis.VisualBasic.Symbols.NamespaceSymbol)