This adds support for the rest of the i32 comparisons.

R=titzer@chromium.org

Bug: v8:6600
Change-Id: Ic613c59d17140b1e5c72fb58c4a8487ae13b6ae6
Reviewed-on: https://chromium-review.googlesource.com/887022Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50881}