Microsoft.CodeAnalysis.SemanticModelReuse.AbstractSemanticModelReuseLanguageService<TMemberDeclarationSyntax, TBasePropertyDeclarationSyntax, TAccessorDeclarationSyntax>.TryGetSpeculativeSemanticModelWorker(Microsoft.CodeAnalysis.SemanticModel, Microsoft.CodeAnalysis.SyntaxNode, Microsoft.CodeAnalysis.SyntaxNode)