internal static bool IsOutArgument(IdentifierNameSyntax identifier)
 {
     return(identifier.GetFirstNonParenthesizedParent() is ArgumentSyntax argument &&
            argument.RefOrOutKeyword.IsKind(SyntaxKind.OutKeyword));
 }
 private static bool IsExceptionThrow(IdentifierNameSyntax identifier)
 {
     return(identifier.GetFirstNonParenthesizedParent().IsKind(SyntaxKind.ThrowStatement));
 }