deps: cherry-pick 5005faed5 from V8 upstream

Original commit message:

[turbofan] Improve representation selection for type guard.

This takes into account the type of the type guard when choosing
representation for a node. To make the representation changes
unambiguous, we pass the restricted type to the changer.

BUG=chromium:726554

Review-Url: https://codereview.chromium.org/2920193004
Cr-Commit-Position: refs/heads/master@{#45734}