LibJS: Add spec comments to TypedArray.prototype.entries

Author: https://github.com/jamierocks
Commit: https://github.com/SerenityOS/serenity/commit/24caacfe28
Pull-request: https://github.com/SerenityOS/serenity/pull/16117
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibJS/Runtime/TypedArrayPrototype.cpp

@@ -387,7 +387,11 @@ JS_DEFINE_NATIVE_FUNCTION(TypedArrayPrototype::entries)
 {
     auto& realm = *vm.current_realm();
 
+    // 1. Let O be the this value.
+    // 2. Perform ? ValidateTypedArray(O).
     auto* typed_array = TRY(validate_typed_array_from_this(vm));
+
+    // 3. Return CreateArrayIterator(O, key+value).
     return ArrayIterator::create(realm, typed_array, Object::PropertyKind::KeyAndValue);
 }