Implement %TypedArray%.{lastI,i}ndexOf (issue 3578).

Implement %TypedArray%.prototype.sort (issue 3578).

Implement %TypedArray%.reverse (issue 3578).

Implement %TypedArray%.prototype.{map,filter,some,reduce,reduceRight} (issue 3578).

Fix has_pending_exception logic in API's Array::CloneElementAt (issue 4103).

Adding api to get last gc object statistics for chrome://tracing (Chromium issue 476013).

Fix harmless HGraph verification failure after hoisting inlined bounds checks (Chromium issue 487608).

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/4.5.7@{#1}
Cr-Branched-From: 31fb50247497b5d681792e7707b8a739aee6c736-refs/heads/master@{#28495}