[runtime] Don't track transitions for certainly detached maps
Previously such maps were marked as prototype, but that has bad performance / memory characteristics if objects are used as dictionaries. Bug: b:148346655, v8:10339 Change-Id: I287c5664c8b7799a084669aaaffe3affcf73e95f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2179322Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#67537}
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