fix bug clippingNodetest on mobile
don't release an object return by Object::create()
Don't release an autoreleased object
Merge pull request #4832 from minggo/performancetest-crash

fix a crash in PerformanceTest:AllocTest
Merge pull request #4833 from minggo/bug-fix

Fix crash of PerformanceTest:PerformanceNodeChildrenTest
Merge pull request #4791 from dabingnn/develop_clippingNodeMobile

fix bug clippingNodetest on mobile
Merge branch 'develop' into develop_nutty_modify_framework_optimizewidgets