Allow const JSON imports with type narrowing #34860

Job	Run time
coverage	13m 17s
lint	1m 5s
format	26s
browser-integration	1m 38s
knip	32s
Test Node 24 on macos-latest	13m 44s
misc	24s
package-size	1m 24s
Test Node 24 on windows-latest	11m 14s
Test Node 22 on ubuntu-latest	11m 19s
Test Node 24 on ubuntu-latest	9m 36s
Test Node 22 on windows-latest	14m 59s
Test Node 14 on ubuntu-latest	12m 59s
Test Node 20 on ubuntu-latest	11m 16s
Test Node 16 on ubuntu-latest	13m 15s
Test Node 18 on windows-latest	15m 27s
Test Node 18 on ubuntu-latest	12m 47s
Test Node 16 on macos-latest	17m 8s
Test Node 16 on windows-latest	15m 15s
smoke	56s
Test Node 14 on windows-latest	16m 33s
baselines	9m 36s
Test Node 20 on windows-latest	14m 9s
typecheck	50s
self-check	1m 3s
Test Node lts/* on ubuntu-latest with --no-bundle	12m 19s
required	4s
	3h 53m 15s

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