dillon1000/react

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Separate SyntheticEvent constructors to prevent deopts (#19907)

* Remove arguments from hot path

* Make SyntheticEvent subtypes monomorphic

* Maybe fix Flow?
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Dan Abramov authored 1890159a5d362e76ee949dfcace1ccb9677abc45 Parent c63741f
Changed paths4 files
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M packages/react-dom/src/events/SyntheticEvent.js ModifiedM packages/react-dom/src/events/plugins/BeforeInputEventPlugin.js ModifiedM packages/react-dom/src/events/plugins/EnterLeaveEventPlugin.js ModifiedM packages/react-dom/src/events/plugins/SimpleEventPlugin.js Modified
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