[Fiber] Instrument the lazy initializer thenable in all cases (#35521) #1597

Job	Run time
Discover yarn workspaces	6s
Lint babel-plugin-react-compiler	28s
Jest babel-plugin-react-compiler	48s
Test make-read-only-util	33s
Test snap	21s
Test react-compiler-runtime	23s
Test eslint-plugin-react-compiler	38s
Test react-forgive	43s
Test react-mcp-server	22s
Test babel-plugin-react-compiler	1m 4s
Test react-compiler-healthcheck	27s
	5m 53s

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