This is a first step towards constraining down the heap interface to
just the heap.h file. Note that many includes still leak through that
file to the global "src" directory, but there now is a single place
controlling which declarations leak that way. Especially inclusion of
inline header files within "heap" has been limited drastically.

R=hpayer@chromium.org,mlippautz@chromium.org

Review URL: https://codereview.chromium.org/1281233003

Cr-Commit-Position: refs/heads/master@{#30092}

R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1263033004

Cr-Commit-Position: refs/heads/master@{#30091}

R=mlippautz@chromium.org

Review URL: https://codereview.chromium.org/1284643003

Cr-Commit-Position: refs/heads/master@{#30090}

BUG=chromium:507211
LOG=n

Review URL: https://codereview.chromium.org/1257653011

Cr-Commit-Position: refs/heads/master@{#30089}

R=yangguo@chromium.org
BUG=chromium:516423
LOG=n

Review URL: https://codereview.chromium.org/1277153003

Cr-Commit-Position: refs/heads/master@{#30088}

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1269683002

Cr-Commit-Position: refs/heads/master@{#30087}

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1281533003

Cr-Commit-Position: refs/heads/master@{#30086}

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1277693004

Cr-Commit-Position: refs/heads/master@{#30085}

R=jkummerow@chromium.org
BUG=chromium:517778
LOG=Y

Review URL: https://codereview.chromium.org/1278353002

Cr-Commit-Position: refs/heads/master@{#30084}

BUG=

Review URL: https://codereview.chromium.org/1281923002

Cr-Commit-Position: refs/heads/master@{#30083}

TurboFan is now a requirement and supported by all backends, so we don't
need those macros (plus all the machinery on top) anymore.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1282763002

Cr-Commit-Position: refs/heads/master@{#30082}

The !IS_SPEC_OBJECT(x) check implies both IS_STRING(x) and
IS_SIMD_VALUE(x), and generates shorter/better code.  So we
can safely remove the redundant checks.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/1278873007

Cr-Commit-Position: refs/heads/master@{#30081}

No need to provide TO_INT32/TO_UINT32 functions for every native
context, as they can be implemented in terms of TO_NUMBER more easily
and efficiently.

Also remove the obsolete TO_BOOLEAN_FUN_INDEX from the native contexts.

Review URL: https://codereview.chromium.org/1275013004

Cr-Commit-Position: refs/heads/master@{#30080}

When a (prototype) map registers as a user of its own prototype, it now remembers the index in that prototype's registry where it is listed.
This remembered index is used on un-registration to find the right slot to clear without walking the entire registry.
Compaction of the registry must update all entries' remembered indices.

BUG=chromium:517778,chromium:517406
LOG=n
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1276353004

Cr-Commit-Position: refs/heads/master@{#30079}

Use a hash map instead of a list for faster lookups.

BUG=chromium:517406
LOG=n
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1279763006

Cr-Commit-Position: refs/heads/master@{#30078}

Rolling v8/tools/clang to c956d7970bf6637cb34f17ff64c375b6591d5940

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1276023003

Cr-Commit-Position: refs/heads/master@{#30077}

Only walk the heap clearing KeyedStoreICs when the dictionary in question belongs to an object that's used as a prototype.
This is a temporary mitigation until we have a way to clear such ICs without having to walk the heap.

BUG=v8:4335
LOG=y
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1275363002

Cr-Commit-Position: refs/heads/master@{#30076}

Currently, looking up a lexical context variable requires looking up
the variable name and then checking its mode. This can be a bottleneck
in Runtime_DeclareGlobals, even when no lexical context variables are
declared.

R=rossberg@chromium.org
BUG=crbug:517778
LOG=N

Review URL: https://codereview.chromium.org/1281883002

Cr-Commit-Position: refs/heads/master@{#30075}

Fixes the use of eval calls in strict parameter lists in particular.

R=adamk@chromium.org
BUG=v8:811
LOG=N

Review URL: https://codereview.chromium.org/1276273002

Cr-Commit-Position: refs/heads/master@{#30074}

Also clean up variable naming in min_max and other tests. Fix class_fmt in mips64 assembler test for proper NaN checking

Review URL: https://codereview.chromium.org/1276813004

Cr-Commit-Position: refs/heads/master@{#30073}

Reland patch originally reviewed at https://codereview.chromium.org/1268553003/

This new patch marks a test [PASS, FAIL] since it passes on some platforms.

Review URL: https://codereview.chromium.org/1273883005

Cr-Commit-Position: refs/heads/master@{#30072}

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1281903002

Cr-Commit-Position: refs/heads/master@{#30071}

Note that this tests performed unnecessary many iterations which led to
long runtimes in debug mode and also caused flaky GCs during that would
cause the optimized code map to be flushed and violated assumptions.

R=yangguo@chromium.org
BUG=v8:4363
LOG=N

Review URL: https://codereview.chromium.org/1280973002

Cr-Commit-Position: refs/heads/master@{#30070}

Was fixed by https://chromium.googlesource.com/v8/v8/+/826f8da55fb868a365d047a4a653eb8ff2bfc14e

R=mstarzinger@chromium.org
BUG=517455
LOG=N

Review URL: https://codereview.chromium.org/1280953002

Cr-Commit-Position: refs/heads/master@{#30069}

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1278113004

Cr-Commit-Position: refs/heads/master@{#30068}

With --harmony-proxies enabled, embedded pointers in optimized code can point to
a JSProxy (via a cell). Since JSProxy can morph into JSObject we need to align
the expectations of weak vs strong refs.

With this patch we also treat JSPRoxy as weak ref (like JSObject) and therefore
properly record a dependency on it, so that once the cell pointing to it becomes
unreachable we deoptimize the corresponding code.

BUG=v8:4359
LOG=N

Review URL: https://codereview.chromium.org/1270393003

Cr-Commit-Position: refs/heads/master@{#30067}

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1269313003

Cr-Commit-Position: refs/heads/master@{#30066}

Rationale: The {kind} of a call descriptor describes what the {target} being
called is--i.e. a JSFunction, code object, or address. That kind materially
dictates the instruction(s) generated for an outgoing call.

The other flags on a call descriptor should describe specific properties
(like whether a roots register is valid or not) so that backend logic doesn't
have to switch over the kind, but is informed directly of what it wants to
know.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1268273003

Cr-Commit-Position: refs/heads/master@{#30065}

Plus some renaming for consistency.

R=adamk@chromium.org
BUG=v8:811
LOG=N

Review URL: https://codereview.chromium.org/1278783002

Cr-Commit-Position: refs/heads/master@{#30064}

[turbofan] Remove architecture-specific linkage files and LinkageTraits. Use macro-assembler-defined constants.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1272883003

Cr-Commit-Position: refs/heads/master@{#30063}

even if there are no idle notifications.

BUG=chromium:515873
LOG=NO

Review URL: https://codereview.chromium.org/1274633003

Cr-Commit-Position: refs/heads/master@{#30062}

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1279043002

Cr-Commit-Position: refs/heads/master@{#30061}

mutator utilization.

This makes GC heuristics more robust for small applications that trigger
scavenges but do not trigger full GC.

BUG=

Review URL: https://codereview.chromium.org/1280703002

Cr-Commit-Position: refs/heads/master@{#30060}

Otherwise, if there is no GC and no idle notification,
memory reducer will use old allocation rate.

BUG=chromium:515873
LOG=NO

Review URL: https://codereview.chromium.org/1280623002

Cr-Commit-Position: refs/heads/master@{#30059}

BUG=chromium:515782
LOG=n

Review URL: https://codereview.chromium.org/1267773004

Cr-Commit-Position: refs/heads/master@{#30058}

BUG=chromium:511215
LOG=n

Review URL: https://codereview.chromium.org/1276853002

Cr-Commit-Position: refs/heads/master@{#30057}

BUG=chromium:515782
LOG=n

Review URL: https://codereview.chromium.org/1273403002

Cr-Commit-Position: refs/heads/master@{#30056}

Reason for revert:
[Sheriff] Lacks one test expectation for
http://build.chromium.org/p/client.v8/builders/V8%20Linux64/builds/4573
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim/builds/4516

64 bits only?

Original issue's description:
> Update to latest test262 from 2015-07-31
>
> Committed: https://crrev.com/722ad6923887d367f14588f5ccd6697b8684bd28
> Cr-Commit-Position: refs/heads/master@{#30052}

TBR=adamk@chromium.org,littledan@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1280903002

Cr-Commit-Position: refs/heads/master@{#30055}

Rolling v8/third_party/icu to bbb24c53b4f46025e87a5973c39fa722c8757595

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1276153002

Cr-Commit-Position: refs/heads/master@{#30054}

R=yangguo@chromium.org, jochen@chromium.org
BUG=507133
LOG=Y

Review URL: https://codereview.chromium.org/1275683002

Cr-Commit-Position: refs/heads/master@{#30053}