Reason for disabling failure on ARM64 simulator in no-snap mode.

TBR=dslomov@chromium.org
TEST=cctest/test-run-jsexceptions/DeoptFinallyReturn
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/975003002

Cr-Commit-Position: refs/heads/master@{#26970}