Microsoft.CodeAnalysis.ChangeSignature.AbstractChangeSignatureService.ChangeSignature(Microsoft.CodeAnalysis.SemanticDocument, Microsoft.CodeAnalysis.ISymbol, Microsoft.CodeAnalysis.SyntaxNode, Microsoft.CodeAnalysis.SyntaxNode, Microsoft.CodeAnalysis.ChangeSignature.SignatureChange, Microsoft.CodeAnalysis.Formatting.LineFormattingOptions, System.Threading.CancellationToken)