This is a hacky approach to make constant field tracking somewhat
friendly to class boilerplates - if the class boilerplate has
an on-descriptor-data field, we change the field to be
an on-instance-const-field and store it on the instance.

Bug: v8:8361
Change-Id: I5152041363bcd26568669fee93c91ff362ba8de9
Reviewed-on: https://chromium-review.googlesource.com/c/1319869
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57344}