anchor.diff:      _assertArgumentRange(0, 0, SourceRange(15, 3), SourceRange(15, 1));
     }
   
  -  Future<void> test_argumentRange_last_noTrailingComma() async {
  +  Future<void> test_last_noTrailingComma() async {
       await resolveTestCode('''
   void f() {
     g(0, 1);
  
positive.code:     _assertArgumentRange(0, 2, SourceRange(15, 18), SourceRange(15, 16));
    }
  
    Future<void> test_argumentRange_all_positional_noTrailingComma() async {
      await resolveTestCode('''
  void f() {
    g(0, 1, 2);
  
negative.code:     _assertArgumentRange(0, 2, SourceRange(15, 16), SourceRange(15, 16));
    }
  
    Future<void> test_all_named_trailingComma() async {
      await resolveTestCode('''
  void f() {
    g(a: 0, b: 1, c: 2, );
  