In particular, test all integrity level transitions properly.

The motivation for this fix was to get rid of the test that introduce {frozen_symbol}
transition while leaving properties configurable and writable. This CL tests each
integrity transition separately, and sets the attributes accordingly.

Bug: v8:8538
Change-Id: I741d87bba1472aec68bf92084e65edc16c1e08d8
Reviewed-on: https://chromium-review.googlesource.com/c/1446097Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59226}