anchor.diff:    */
   var q = 1;
   
  +void foo() {
  +  /**
  +    * Nested function.
  +    */
  +  bool bar() => true;
  +}
   
   class ClassToAddIndenting {
     /* test /* test */ */
  
positive.code:     * // Test
      */
    var q = 1;
  }
  
negative.code: /// Any line that starts with `var` or `void` should be coloured.
  /// Every other line should be a comment.
  
  // ignore_for_file: unused_element
  
  /* test /* test */ */
  var a = 1;
  