Both of them shipped in Chrome 49 without incident.

Also move relevant tests from harmony/ to es6/.

Review URL: https://codereview.chromium.org/1815773002

Cr-Commit-Position: refs/heads/master@{#34964}

See https://github.com/tc39/ecma262/pull/331.

R=rossberg
BUG=

Review URL: https://codereview.chromium.org/1680133002

Cr-Commit-Position: refs/heads/master@{#33855}

fly-by fix of Proxy [[Construct]] on mips.

BUG=v8:1543
LOG=N

Review URL: https://codereview.chromium.org/1517463002

Cr-Commit-Position: refs/heads/master@{#32758}

LOG=N
BUG=v8:1543

Review URL: https://codereview.chromium.org/1481383003

Cr-Commit-Position: refs/heads/master@{#32471}