This was already unsupported by the map updated because the condition was
manually checked before CanBeInPlaceChangedTo. Since the latter function missed
the check, however, new code using the function (json parser) missed the
relevant check. Simply move the condition to the function.

Bug: chromium:964869
Change-Id: I9424a5706c5f6d637acbf532707da3f1e7d9b55e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1622114
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61703}