Web IDL validation errors

[autokagami]

🤖 This is an automatic issue report for Web IDL validation error. 🤖

The bot found validation errors but couldn't fix them automatically, since the IDL texts include HTML tags. Please check the following messages and fix them.

• Validation error at line 4 in test-spec,0:
          void doTheFoo();
          ^
  

  Error: void is now replaced by undefined. Refer to the relevant GitHub issue for more information.

• Validation error at line 3 in test-spec,1:
          void doTheFoo();
          ^
  

  Error: void is now replaced by undefined. Refer to the relevant GitHub issue for more information.

• Validation error at line 6 in test-spec,1, inside `interface mixin MyMixin`:
          void doTheFoo(DOMString foo)
               ^
  

  Error: The operation "doTheFoo" has already been defined for the base interface "BaseInterface" either in itself or in a mixin

• Validation error at line 6 in test-spec,1:
          void doTheFoo(DOMString foo
          ^
  

  Error: void is now replaced by undefined. Refer to the relevant GitHub issue for more information.

• Validation error at line 1 in test-spec,2, inside `interface IHaveConstructor`:
        [Exposed=Window, Constructor] // cause merge conflict 7
                         ^
  

  Error: Constructors should now be represented as a constructor() operation on the interface instead of [Constructor] extended attribute. Refer to the WebIDL spec section on constructor operations for more information.

• Validation error at line 4 in test-spec,2:
          void doTheFoo();
          ^
  

  Error: void is now replaced by undefined. Refer to the relevant GitHub issue for more information.

• Validation error at line 1 in test-spec,3, inside `interface ImplicitlyExposed`:
        interface ImplicitlyExposed {
                  ^
  

  Error: Interfaces must have [Exposed] extended attribute. To fix, add, for example, [Exposed=Window]. Please also consider carefully if your interface should also be exposed in a Worker scope. Refer to the WebIDL spec section on Exposed for more information.

• Validation error at line 3 in test-spec,3:
          void doTheFoo();
          ^
  

  Error: void is now replaced by undefined. Refer to the relevant GitHub issue for more information.

• Validation error at line 4 in test-spec,4, inside `interface IUseTheDictionary`:
        interface IUseTheDictionary {
                  ^
  

  Error: Interfaces must have [Exposed] extended attribute. To fix, add, for example, [Exposed=Window]. Please also consider carefully if your interface should also be exposed in a Worker scope. Refer to the WebIDL spec section on Exposed for more information.

• Validation error at line 5 in test-spec,4:
          void doTheFoo(MyDictionary dict
          ^
  

  Error: void is now replaced by undefined. Refer to the relevant GitHub issue for more information.

• Validation error at line 5 in test-spec,4, inside `interface IUseTheDictionary -> operation doTheFoo -> argument dict`:
          void doTheFoo(MyDictionary dict);
                                     ^
  

  Error: Dictionary argument must be optional if it has no required fields

• Validation error at line 4 in test-spec,5:
          void doTheFoo(optional MyUnion
          ^
  

  Error: void is now replaced by undefined. Refer to the relevant GitHub issue for more information.

• Validation error at line 4 in test-spec,5:
          void doTheFoo(optional MyUnion? dict);
                                 ^
  

  Error: Nullable union cannot include a dictionary type.

• Validation error at line 4 in test-spec,5, inside `interface IAlsoUseTheDictionary -> operation doTheFoo -> argument dict`:
   doTheFoo(optional MyUnion? dict);
                              ^
  

  Error: Dictionary arguments cannot be nullable.

• Validation error at line 6 in test-spec,0, inside `dictionary Duplicated`:
        dictionary Duplicated {};
                   ^
  

  Error: The name "Duplicated" of type "interface" was already seen

Please file an issue at https://github.com/saschanaz/webidl-updater/issues/new if you think this is invalid or should be enhanced.