LibJS: Convert Heap::allocate{,_without_realm}() to NonnullGCPtr

Author: https://github.com/linusg
Commit: 22089436ed
Pull-request: https://github.com/SerenityOS/serenity/pull/16498
Reviewed-by: https://github.com/trflynn89 ✅

Userland/Libraries/LibWeb/CSS/MediaQueryList.cpp

@@ -17,7 +17,7 @@ namespace Web::CSS {
 
 JS::NonnullGCPtr<MediaQueryList> MediaQueryList::create(DOM::Document& document, NonnullRefPtrVector<MediaQuery>&& media)
 {
-    return *document.heap().allocate<MediaQueryList>(document.realm(), document, move(media));
+    return document.heap().allocate<MediaQueryList>(document.realm(), document, move(media));
 }
 
 MediaQueryList::MediaQueryList(DOM::Document& document, NonnullRefPtrVector<MediaQuery>&& media)