Auto merge of #14963 - jdm:script_current_line, r=asajeffrey

Report meaningful line numbers for inline script errors

Rebased from #14661.

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #12744 and partially #9604
- [X] There are tests for these changes

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components/script/dom/htmllinkelement.rs

@@ -59,7 +59,7 @@ impl HTMLLinkElement {
         HTMLLinkElement {
             htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
             rel_list: Default::default(),
-            parser_inserted: Cell::new(creator == ElementCreator::ParserCreated),
+            parser_inserted: Cell::new(creator.is_parser_created()),
             stylesheet: DOMRefCell::new(None),
             cssom_stylesheet: MutNullableJS::new(None),
             pending_loads: Cell::new(0),