Version 4.8.222

Implement flag and source getters on RegExp.prototype (issues 3715, 4528).

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.8.222@{#1}
Cr-Branched-From: 85494e9-refs/heads/master@{#31782}

Version 4.8.221

Implement flag and source getters on RegExp.prototype (issues 3715, 4528).

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.8.221@{#1}
Cr-Branched-From: 8339b76-refs/heads/master@{#31781}

Version 4.8.220

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.8.220@{#1}
Cr-Branched-From: bdc9505-refs/heads/master@{#31772}

Version 4.8.219

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.8.219@{#1}
Cr-Branched-From: 6471fbf-refs/heads/master@{#31771}

Version 4.8.218

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.8.218@{#1}
Cr-Branched-From: a2fdcc2-refs/heads/master@{#31770}

Version 4.8.217

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.8.217@{#1}
Cr-Branched-From: 4548c22-refs/heads/master@{#31768}

Version 4.8.216

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.8.216@{#1}
Cr-Branched-From: 4edbe3a-refs/heads/master@{#31767}

Version 4.8.215

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.8.215@{#1}
Cr-Branched-From: e682048-refs/heads/master@{#31765}

Version 4.7.80.19 (cherry-pick)

Merged 7549792

Fix Heap::ComputeHeapState after 057514 and 6256dc.

BUG=chromium:538539
LOG=N
R=hablich@chromium.org

Review URL: https://codereview.chromium.org/1413713012 .

Cr-Commit-Position: refs/branch-heads/4.7@{v8#30}
Cr-Branched-From: f3c8926-refs/heads/master@{#31014}

Version 4.8.214

[es6] Fix Object built-in subclassing (issue 3886).

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.8.214@{#1}
Cr-Branched-From: 0594781-refs/heads/master@{#31760}