Auto merge of #25510 - pshaughn:queuemicrotask, r=jdm

Implement queueMicrotask

<!-- Please describe your changes on the following line: -->
The VoidFunction of a user-queued microtask is identical to a PromiseJobCallback in everything but type name, so implementing this method turned out to be just a matter of attaching a WebIDL frontend to a copy-and-pasted backend. All the remaining queueMicrotask WPT failures are because we don't have shared/service workers.

---
<!-- 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 #21574

<!-- Either: -->
- [X] There are tests for these changes

<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->

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

components/script/dom/window.rs

@@ -11,6 +11,7 @@ use crate::dom::bindings::codegen::Bindings::HistoryBinding::HistoryBinding::His
 use crate::dom::bindings::codegen::Bindings::MediaQueryListBinding::MediaQueryListBinding::MediaQueryListMethods;
 use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::PermissionState;
 use crate::dom::bindings::codegen::Bindings::RequestBinding::RequestInit;
+use crate::dom::bindings::codegen::Bindings::VoidFunctionBinding::VoidFunction;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::{
     self, FrameRequestCallback, WindowMethods, WindowPostMessageOptions,
 };
@@ -862,6 +863,12 @@ impl WindowMethods for Window {
         self.ClearTimeout(handle);
     }
 
+    // https://html.spec.whatwg.org/multipage/#dom-queuemicrotask
+    fn QueueMicrotask(&self, callback: Rc<VoidFunction>) {
+        self.upcast::<GlobalScope>()
+            .queue_function_as_microtask(callback);
+    }
+
     // https://html.spec.whatwg.org/multipage/#dom-window
     fn Window(&self) -> DomRoot<WindowProxy> {
         self.window_proxy()