method
CanConvert
Microsoft.CodeAnalysis.CSharp.ConvertToRawString.IConvertStringProvider.CanConvert(Microsoft.CodeAnalysis.ParsedDocument, Microsoft.CodeAnalysis.CSharp.Syntax.ExpressionSyntax, Microsoft.CodeAnalysis.Formatting.SyntaxFormattingOptions, out Microsoft.CodeAnalysis.CSharp.ConvertToRawString.CanConvertParams, System.Threading.CancellationToken)