public static T WithAlreadyMappedStartLineAnnotation <T>(this T node, int sourcePosition) where T : SyntaxNode
 {
     return(node.WithAdditionalAnnotations(AnnotationConstants.MarkLeadingTriviaAsMapped(sourcePosition)));
 }
 public static SyntaxToken WithAlreadyMappedStartLineAnnotation(this SyntaxToken token, int sourcePosition)
 {
     return(token.WithAdditionalAnnotations(AnnotationConstants.MarkLeadingTriviaAsMapped(sourcePosition)));
 }