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/LibJS/Runtime/PromiseConstructor.cpp

@@ -45,10 +45,10 @@ static ThrowCompletionOr<Value> perform_promise_common(VM& vm, Iterator& iterato
     VERIFY(promise_resolve.is_function());
 
     // 1. Let values be a new empty List.
-    auto* values = vm.heap().allocate_without_realm<PromiseValueList>();
+    auto values = vm.heap().allocate_without_realm<PromiseValueList>();
 
     // 2. Let remainingElementsCount be the Record { [[Value]]: 1 }.
-    auto* remaining_elements_count = vm.heap().allocate_without_realm<RemainingElements>(1);
+    auto remaining_elements_count = vm.heap().allocate_without_realm<RemainingElements>(1);
 
     // 3. Let index be 0.
     size_t index = 0;