Also, add tests to ensure they will always return this, and to confirm
they return this when these doc changes are back-ported to earlier
release lines.

PR-URL: nodejs#13553
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Roman Reiss <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Gibson Fahnestock <[email protected]>
Reviewed-By: James M Snell <[email protected]>

PR-URL: nodejs#13989
Reviewed-By: Refael Ackermann <[email protected]>

PR-URL: nodejs#14035
Refs: nodejs#14015
Reviewed-By: Gibson Fahnestock <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

The v8 and test-hash-seed targets cannot be run in parallel because they
need different copies of the deps/v8 directory.

Ref: nodejs#14004 (comment)
PR-URL: nodejs#14219
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Refael Ackermann <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>

* Take RegExp creation out of cycles.
* Use test(), not match() in boolean context.
* Remove redundant RegExp parts.

Backport-PR-URL: nodejs#14348
PR-URL: nodejs#13536
Reviewed-By: Anna Henningsen <[email protected]>

Original commit messages:
v8/v8@a2ab135
  [snapshot] Rehash strings after deserialization.

  See https://goo.gl/6aN8xA

  Bug: v8:6593
  Change-Id: Ic8b0b57195d01d41591397d5d45de3f0f3ebc3d9
  Reviewed-on: https://chromium-review.googlesource.com/574527
  Reviewed-by: Camillo Bruni <[email protected]>
  Reviewed-by: Jakob Gruber <[email protected]>
  Reviewed-by: Ulan Degenbaev <[email protected]>
  Commit-Queue: Yang Guo <[email protected]>
  Cr-Commit-Position: refs/heads/master@{nodejs#46732}

v8/v8@182caaf
  Do not track transitions for built-in objects.

  Objects created during bootstrapping do not need
  a transition tree except for elements kind transitions.

  Bug: v8:6596
  Change-Id: I237b8b2792f201336e1c9731c815095dd06bc182
  Reviewed-on: https://chromium-review.googlesource.com/571750
  Reviewed-by: Igor Sheludko <[email protected]>
  Commit-Queue: Yang Guo <[email protected]>
  Cr-Commit-Position: refs/heads/master@{nodejs#46693}

Fixes: nodejs#14171
PR-URL: nodejs#14385