This removes the frame state input representing the before-state from
nodes having any comparison operator. Lowering that inserts number
conversions of the inputs has to be disabled when deoptimization is
enabled, because the frame state layout is no longer known.

R=jarin@chromium.org
BUG=v8:5021

Review-Url: https://codereview.chromium.org/2134173002
Cr-Commit-Position: refs/heads/master@{#37646}