dillon1000/react

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[Devtools] Look for a ReactMemoCacheSentinel on state (#28831)

The useMemoCache polyfill doesn't have access to the fiber, and it
simply uses state, which does not work with the existing devtools 
badge for the compiler.

With this PR, devtools will look on the very first hook's state for the
memo cache sentinel and display the Forget badge if present.

The polyfill will add this sentinel to it's state (the cache array).
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Sathya Gunasekaran authored d486051de7a77236e729d395a18acac2c5ece35f Parent 1683cb1
Changed paths2 files
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M packages/react-devtools-shared/src/backend/ReactSymbols.js ModifiedM packages/react-devtools-shared/src/backend/renderer.js Modified
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