Rename internal property to fix React DevTools

[gaearon]

It's broken on master because of this:

https://github.com/facebook/react-devtools/blob/f0cde12e3531aae203f8a685f5e74ead58019b0a/backend/attachRendererFiber.js#L239-L241

Longer term we should check the backend into this monorepo.

[pull-bot]

ReactDOM: size: -0.0%, gzip: -0.0%

Details of bundled changes.

Comparing: e0ca51a...ee404f2

react-dom

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
react-dom.development.js	0.0%	+0.1%	611.52 KB	611.8 KB	141.29 KB	141.4 KB	UMD_DEV
react-dom.production.min.js	-0.0%	-0.0%	100.06 KB	100.06 KB	31.84 KB	31.84 KB	UMD_PROD
react-dom.development.js	0.0%	+0.1%	595.9 KB	596.18 KB	137.12 KB	137.23 KB	NODE_DEV
react-dom.production.min.js	-0.0%	0.0%	98.5 KB	98.5 KB	31.06 KB	31.07 KB	NODE_PROD
ReactDOM-dev.js	0.0%	+0.1%	620.33 KB	620.62 KB	139.88 KB	139.99 KB	FB_WWW_DEV
ReactDOM-prod.js	-0.0%	0.0%	284.19 KB	284.19 KB	51.94 KB	51.94 KB	FB_WWW_PROD

react-art

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
react-art.development.js	+0.1%	+0.1%	414.43 KB	414.71 KB	90.2 KB	90.31 KB	UMD_DEV
react-art.production.min.js	-0.0%	0.0%	90.38 KB	90.38 KB	27.49 KB	27.49 KB	UMD_PROD
react-art.development.js	+0.1%	+0.2%	340.27 KB	340.55 KB	71.52 KB	71.63 KB	NODE_DEV
react-art.production.min.js	-0.0%	🔺+0.1%	54.91 KB	54.9 KB	16.76 KB	16.77 KB	NODE_PROD
ReactART-dev.js	+0.1%	+0.2%	348.52 KB	348.81 KB	71.1 KB	71.21 KB	FB_WWW_DEV
ReactART-prod.js	-0.0%	0.0%	166.93 KB	166.92 KB	27.43 KB	27.43 KB	FB_WWW_PROD

react-test-renderer

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
react-test-renderer.development.js	+0.1%	+0.2%	348.34 KB	348.62 KB	73.25 KB	73.37 KB	UMD_DEV
react-test-renderer.production.min.js	-0.0%	-0.1%	54.89 KB	54.89 KB	16.72 KB	16.72 KB	UMD_PROD
react-test-renderer.development.js	+0.1%	+0.2%	339.17 KB	339.45 KB	70.54 KB	70.66 KB	NODE_DEV
react-test-renderer.production.min.js	-0.0%	🔺+0.1%	54.13 KB	54.12 KB	16.29 KB	16.3 KB	NODE_PROD
ReactTestRenderer-dev.js	+0.1%	+0.2%	347.7 KB	347.98 KB	70.18 KB	70.31 KB	FB_WWW_DEV

react-reconciler

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
react-reconciler.development.js	+0.1%	+0.2%	319.52 KB	319.8 KB	65.99 KB	66.12 KB	NODE_DEV
react-reconciler.production.min.js	-0.0%	🔺+0.1%	47 KB	47 KB	14.22 KB	14.23 KB	NODE_PROD
react-reconciler-persistent.development.js	+0.1%	+0.2%	318.86 KB	319.14 KB	65.76 KB	65.88 KB	NODE_DEV
react-reconciler-persistent.production.min.js	-0.0%	0.0%	45.97 KB	45.97 KB	14.09 KB	14.09 KB	NODE_PROD

react-native-renderer

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
ReactNativeRenderer-dev.js	+0.1%	+0.1%	459.32 KB	459.6 KB	98.22 KB	98.34 KB	RN_FB_DEV
ReactNativeRenderer-prod.js	-0.0%	0.0%	217.88 KB	217.88 KB	36.39 KB	36.4 KB	RN_FB_PROD
ReactNativeRenderer-dev.js	+0.1%	+0.1%	459.07 KB	459.35 KB	98.16 KB	98.28 KB	RN_OSS_DEV
ReactNativeRenderer-prod.js	-0.0%	0.0%	217.1 KB	217.09 KB	36.26 KB	36.27 KB	RN_OSS_PROD
ReactFabric-dev.js	+0.1%	+0.1%	441.73 KB	442.01 KB	93.82 KB	93.94 KB	RN_FB_DEV
ReactFabric-prod.js	-0.0%	0.0%	202.77 KB	202.77 KB	33.67 KB	33.67 KB	RN_FB_PROD
ReactFabric-dev.js	+0.1%	+0.1%	441.76 KB	442.05 KB	93.83 KB	93.95 KB	RN_OSS_DEV
ReactFabric-prod.js	-0.0%	0.0%	202.81 KB	202.81 KB	33.69 KB	33.69 KB	RN_OSS_PROD

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