Fix some type conversion error
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3_3
Add manual lua binding for Node::enumerateChildren
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3_3
Merge pull request #7340 from Dhilan007/v3-opacity-issue

fixed opacity issue in SpriteBatchNode.
[ci skip]
Merge pull request #7341 from samuele3hu/v3_3

Fix some type conversion error and add manual lua binding for Node::enumerateChildren