Add fragment handles to children of FragmentInstances (#34935) #1508

Job	Run time
Lint babel-plugin-react-compiler	34s
Discover yarn workspaces	6s
Jest babel-plugin-react-compiler	46s
Test snap	21s
Test react-forgive	48s
Test react-compiler-healthcheck	20s
Test react-compiler-runtime	22s
Test babel-plugin-react-compiler	1m 0s
Test eslint-plugin-react-compiler	42s
Test make-read-only-util	33s
Test react-mcp-server	23s
	5m 55s

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