Cache mapper instantiations #33322

Job	Run time
browser-integration	2m 50s
coverage	14m 38s
format	23s
knip	35s
lint	56s
package-size	1m 37s
smoke	51s
Test Node 22 on ubuntu-latest	16m 2s
typecheck	48s
Test Node 20 on ubuntu-latest	13m 6s
baselines	13m 8s
misc	25s
Test Node 18 on ubuntu-latest	14m 11s
Test Node 16 on ubuntu-latest	14m 9s
self-check	59s
Test Node 14 on ubuntu-latest	14m 6s
Test Node 22 on windows-latest	13m 59s
Test Node 20 on windows-latest	14m 5s
Test Node 18 on windows-latest	14m 54s
Test Node 16 on windows-latest	15m 6s
Test Node 14 on windows-latest	15m 19s
Test Node 22 on macos-latest	11m 59s
Test Node 20 on macos-latest	10m 18s
Test Node 18 on macos-latest	16m 13s
Test Node 16 on macos-latest	11m 11s
Test Node lts/* on ubuntu-latest with --no-bundle	15m 48s
	4h 7m 36s

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