deps: backport 066747e from upstream V8
This backport fixes a performance pathology in how arrays grow/shrink. This was a regression introduced in V8 4.5. The V8 team has already backported this a far back as V8 4.7. We need to float the backport for v5.x
(V8 4.6) and v4.x
(V8 4.5).
Fixes: https://github.com/nodejs/node/issues/3538 V8-Commit: https://github.com/v8/v8/commit/066747ea053012a99e0cd3e20f36b8ed053b2124
Original commit message: Make sure that NormalizeElements and ShouldConvertToFastElements are …
…based on the same values
BUG=v8:4518 LOG=n
Review URL: https://codereview.chromium.org/1472293002
Cr-Commit-Position: refs/heads/master@{#32265 (closed)}