dillon1000/react

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Call getSnapshotBeforeUpdate before mutation (#12468)

* Call getSnapshotBeforeUpdate in separate traversal, before mutation (aka revert db84b9a) and add unit test.

* Added a new timer to ReactDebugFiberPerf for Snapshot effects
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Brian Vaughn authored ad5273d3488c39a2127d05925d99006b4b5641b2 Parent 90c41a2
Changed paths4 files
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M packages/react-dom/src/__tests__/ReactComponentLifeCycle-test.js ModifiedM packages/react-reconciler/src/ReactDebugFiberPerf.js ModifiedM packages/react-reconciler/src/ReactFiberScheduler.js ModifiedM packages/react-reconciler/src/__tests__/__snapshots__/ReactIncrementalPerf-test.internal.js.snap Modified
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