Conflicting type feedback on Load/StoreICs can lead to out-of-bounds
field access, which is essentially dead code, but EscapeAnalysis was
confused about those. For now, mark the objects as escaping in these
cases, middle-term we want to deal better with this kind of compile-
time known dead code.
BUG=chromium:658185,v8:4586
R=jarin@chromium.org
Review-Url: https://codereview.chromium.org/2459273002
Cr-Commit-Position: refs/heads/master@{#40662}