Move instance.registerEventHandler from createInstance to commitMount in the React reconciler host config
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…Mount` in the React reconciler host config
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According to the doc of createInstance of React reconciler, we should register event handle in the
commitMounthook instead ofcreateInstance. Otherwise, it may cause a memory leak problem with error bonding or suspense.For more details, please see the
packages/core/src/reconciler/__tests__/commitMount.test.tsxfile in this PR. The reproduction demo is inspired from facebook/react#20271 (comment) .