Version 4.2.77.13 (cherry-pick)

Merged ff89876b

[turbofan] Fix lowering of Math.max for integral inputs.

BUG=chromium:468162
LOG=N
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1013853009

Cr-Commit-Position: refs/branch-heads/4.2@{#15}
Cr-Branched-From: 3dfd929e-refs/heads/4.2.77@{#2}
Cr-Branched-From: e0110920-refs/heads/master@{#26757}