Port 6c12d57e

Original Commit Message:

    This fixes the case where the index passed to {HMaybeGrowElements} used
    to derive the new capacity for the elements backing store does not fit
    into Smi range. Such an overflow would fail the capacity check and cause
    growing to be skipped. Subsequent keyed stores would potentially go out
    of bounds.

R=mstarzinger@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=chromium:686427
LOG=N

Review-Url: https://codereview.chromium.org/2697473004
Cr-Commit-Position: refs/heads/master@{#43167}