Backport: Fix Object.entries/values with changing elements

Bug: 111274046
Test: m -j proxy_resolver_v8_unittest && adb sync && adb shell \
/data/nativetest64/proxy_resolver_v8_unittest/proxy_resolver_v8_unittest
Change-Id: I705fc512cc5837e9364ed187559cc75d079aa5cb
(cherry picked from commit d8be9a10287afed07705ac8af027d6a46d4def99)

 static uint32_t GetMaxNumberOfEntries(JSObject* receiver,
 FixedArrayBase* elements) {
 return Subclass::GetMaxIndex(receiver, elements);
 }

 static uint32_t GetMaxNumberOfEntries(JSObject* receiver,
 FixedArrayBase* elements) {
 return Subclass::GetMaxIndex(receiver, elements);
 }
