Fix a portal unmounting crash for renderers with distinct Instance and Container

[Titozzz]

CurrentParent will now be considered as a container node and other renderer than web won't crash when unmounting

this PR follows this one on the React-native repo facebook/react-native#20233

fixes facebook/react-native#19084

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[gaearon]

Thanks. This looks good. I pushed some regression tests that would have caught it.

[pull-bot]

Details of bundled changes.

Comparing: fd410f4...bbf2931

react-noop-renderer

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
react-noop-renderer.development.js	+12.1%	+4.5%	20.69 KB	23.2 KB	5.09 KB	5.32 KB	NODE_DEV
react-noop-renderer.production.min.js	🔺+11.8%	🔺+4.3%	7.76 KB	8.67 KB	2.88 KB	3 KB	NODE_PROD
react-noop-renderer-persistent.development.js	+12.1%	+4.5%	20.81 KB	23.32 KB	5.1 KB	5.33 KB	NODE_DEV
react-noop-renderer-persistent.production.min.js	🔺+11.8%	🔺+4.4%	7.78 KB	8.7 KB	2.89 KB	3.01 KB	NODE_PROD

Generated by 🚫 dangerJS

[gaearon]

Thanks! Can't exactly say when this will land in RN, but you can probably expect it to appear in the next stable release (or the one after that).