Version 4.3.61.8 (cherry-pick)

Merged 2f327a5c
Merged 68a7773e

Do not inline store if field map was cleared.

Correctly handle clearing of deprecated field types.

BUG=v8:4023,v8:4027,chromium:471705
LOG=N
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1094813002

Cr-Commit-Position: refs/branch-heads/4.3@{#11}
Cr-Branched-From: f5c0a23a-refs/heads/4.3.61@{#1}
Cr-Branched-From: 0a7d4f49-refs/heads/master@{#27508}