Auto merge of #12617 - mskrzypkows:expose_interfaces, r=Ms2ger

Partial fix for #12415: expose interfaces of some HTML Elements

<!-- Please describe your changes on the following line: -->
Fix for interfaces:
HTMLHeadingElement.webidl
HTMLHRElement.webidl
HTMLHtmlElement.webidl
HTMLHyperlinkElementUtils.webidl
HTMLIFrameElement.webidl
HTMLImageElement.webidl
HTMLInputElement.webidl
HTMLLabelElement.webidl
HTMLLegendElement.webidl
HTMLLIElement.webidl

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #12415

<!-- Either: -->
- [X] There are tests for these changes OR
- [ ] These changes do not require tests because _____

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

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tests/wpt/metadata/workers/constructors/Worker/unexpected-self-properties.html.ini

@@ -1,5 +0,0 @@
-[unexpected-self-properties.html]
-  type: testharness
-  [unexpected members/interface objects/constructors]
-    expected: FAIL
-

tests/wpt/mozilla/tests/mozilla/interfaces.worker.js

@@ -52,15 +52,6 @@ test_interfaces([
   "HTMLFormControlsCollection",
   "HTMLFormElement",
   "HTMLHeadElement",
-  "HTMLHeadingElement",
-  "HTMLHRElement",
-  "HTMLHtmlElement",
-  "HTMLIFrameElement",
-  "HTMLImageElement",
-  "HTMLInputElement",
-  "HTMLLabelElement",
-  "HTMLLegendElement",
-  "HTMLLIElement",
   "HTMLLinkElement",
   "HTMLMapElement",
   "HTMLMediaElement",
@@ -74,7 +65,6 @@ test_interfaces([
   "HTMLOutputElement",
   "HTMLScriptElement",
   "ImageData",
-  "Image",
   "KeyboardEvent",
   "Location",
   "MediaError",