method
CreateVerbatimStringExpression
Microsoft.CodeAnalysis.CSharp.ConvertBetweenRegularAndVerbatimString.AbstractConvertBetweenRegularAndVerbatimStringCodeRefactoringProvider<TStringExpressionSyntax>.CreateVerbatimStringExpression(Microsoft.CodeAnalysis.EmbeddedLanguages.VirtualChars.IVirtualCharService, System.Text.StringBuilder, TStringExpressionSyntax)