[turbofan] Avoid useless bit masking in typed lowering.

There's no need to apply the 0x1f mask to right hand sides of shifts if
the input is already in range [0,31].

TEST=cctest,unittests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/718193003

Cr-Commit-Position: refs/heads/master@{#25313}
Revert "Increase the target new space size to the max new space size"

TBR=hpayer@chromium.org
BUG=v8:3626
LOG=n

Review URL: https://codereview.chromium.org/724543003

Cr-Commit-Position: refs/heads/master@{#25314}
Move public symbols to the root set.

This allows serializing public symbols that are embedded in code.

BUG=v8:3689
LOG=N
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/722723002

Cr-Commit-Position: refs/heads/master@{#25315}
X87: Leaving a generator via an exception causes it to close

port 24a7ee877e1fe2ba0a52d69061946aeda7c26c10 (r25297)

original commit message:

  Leaving a generator via an exception causes it to close

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/724643002

Patch from Chunyang Dai <chunyang.dai@intel.com>.

Cr-Commit-Position: refs/heads/master@{#25316}
Reland "[turbofan] Weakening of types must weaken ranges inside unions."

This relands commit 4c1f4b796d1c455fc6a023abe145a5e48c4b7b1f.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/723023002

Cr-Commit-Position: refs/heads/master@{#25317}
Fix landing candidate pushes.

BUG=chromium:410721
LOG=n
TBR=tandrii@chromium.org
TEST=script_test.py

Review URL: https://codereview.chromium.org/725503003

Cr-Commit-Position: refs/heads/master@{#25318}
[turbofan] add some registerallocator unittests

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/700753003

Cr-Commit-Position: refs/heads/master@{#25319}
Enable harmony tests for TurboFan that now pass.

R=jarin@chromium.org
TEST=mjsunit/harmony

Review URL: https://codereview.chromium.org/723983002

Cr-Commit-Position: refs/heads/master@{#25320}
Move BailoutReason and flags computation to post-pass

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/668143003

Cr-Commit-Position: refs/heads/master@{#25321}
Perform receiver patching for sloppy mode in high-level IR.

R=verwaest@chromium.org
TEST=cctest/test-run-jscalls/ReceiverPatching

Review URL: https://codereview.chromium.org/717093002

Cr-Commit-Position: refs/heads/master@{#25322}
Enable breakpoint tests that now pass in TurboFan.

R=jarin@chromium.org
TEST=cctest/test-debug

Review URL: https://codereview.chromium.org/726453004

Cr-Commit-Position: refs/heads/master@{#25323}
Avoid fast short-cut in Map::GeneralizeRepresentation() for literals with non-simple transitions.
It started showing after r25253.

BUG=v8:3687
LOG=N
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/715313003

Cr-Commit-Position: refs/heads/master@{#25324}
Implement .of() on typed arrays

BUG=v8:3578
LOG=Y
R=dslomov@chromium.org, wingo@igalia.com

Review URL: https://codereview.chromium.org/660863003

Patch from Adrian Perez <aperez@igalia.com>.

Cr-Commit-Position: refs/heads/master@{#25325}
[turbofan] Smartify the GraphReducer.

Don't use the generic algorithm, but instead start going into the
direction of ControlReducer, using a stack plus a revisit queue to
not miss any more possibilities for reductions anymore.

TEST=cctest,unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/726513002

Cr-Commit-Position: refs/heads/master@{#25326}
Revert "[turbofan] Smartify the GraphReducer."

This reverts commit f04750737063 due to mjsunit/numops-fuzz-part2 hitting an
assertion in the ARM assembler.

TBR=bmeurer@chromium.org
TEST=mjsunit/numops-fuzz-part2

Review URL: https://codereview.chromium.org/724053002

Cr-Commit-Position: refs/heads/master@{#25327}
Install the constructor property on custom prototype before optimizing it as a prototype

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/725593002

Cr-Commit-Position: refs/heads/master@{#25328}
Whitespace change to test the CQ.

TBR=machenbach@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/721113003

Cr-Commit-Position: refs/heads/master@{#25329}
Reland r24737 "Read object pointer atomically while updating slots"

Crashes were fixed by r24914.

BUG=chromium:427746
LOG=N

Review URL: https://codereview.chromium.org/726543003

Cr-Commit-Position: refs/heads/master@{#25330}
Revert of Whitespace change to test the CQ. (patchset #1 id:1 of https://codereview.chromium.org/721113003/)

Reason for revert:
Test CQ

Original issue's description:
> Whitespace change to test the CQ.
>
> TBR=machenbach@chromium.org
> NOTRY=true
>
> Committed: https://chromium.googlesource.com/v8/v8/+/b0ab17592c8729535ebfa1f52131ee7f2b96b1e3

TBR=tandrii@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/725613002

Cr-Commit-Position: refs/heads/master@{#25331}
Revert "TransitionArray now uses <is_data_property, name, attributes> tuple as a key, which allows to have several entries for the same property name."
Revert "Fix for an assertion failure in Map::FindTransitionToField(...). Appeared after r25136."

This revert is made in order to revert r25099 which potentially causes renderer hangs.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/722873004

Cr-Commit-Position: refs/heads/master@{#25332}