This adds tests for 'oddly' behaving comparison functions.
I.e. functions that cause an element kind change and/or
modify the array. The tests check that sort does not crash in these
instances.

R=jgruber@chromium.org

Bug: v8:7382
Change-Id: I4ac9aa081fda9088d1848a960dc66aba671872e5
Reviewed-on: https://chromium-review.googlesource.com/1010062
Commit-Queue: Simon Zünd <szuend@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52612}