Microsoft.CodeAnalysis.ChangeSignature.AbstractChangeSignatureService.ChangeSignatureAsync(Microsoft.CodeAnalysis.Document, Microsoft.CodeAnalysis.ISymbol, Microsoft.CodeAnalysis.SyntaxNode, Microsoft.CodeAnalysis.SyntaxNode, Microsoft.CodeAnalysis.ChangeSignature.SignatureChange, Microsoft.CodeAnalysis.Formatting.LineFormattingOptionsProvider, System.Threading.CancellationToken)