Introduce an api to query the microtask autorun state of an isolate

BUG=none
R=adamk@chromium.org, svenpanne@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/264333004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21250 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Drop unused static microtask API

BUG=none
LOG=y
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/261413003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21251 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Revert interrupt handling code changed in r21208.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/277233004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Reland r20974: Unify and simplify the FastCloneShallowArrayStub

- Don't bake in length/capacity into full codegen calls of stubs,
allowing boilerplates to increase their capacity without regenerating
code.
- Unify all variants of the clone stub into a single,
length-independent version.
- Various tweaks to make sure that the clone stub doesn't spill and
therefore need an eager stack frame.
- Handle all lengths of array literals in the fast case.

R=mvstanton@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=21230

Review URL: https://codereview.chromium.org/272513004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21253 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Move more builtin files to strict mode.

R=rossberg@chromium.org
BUG=v8:1955
LOG=N

Review URL: https://codereview.chromium.org/279543002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21254 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Make escape analysis preserve all representations required by HCompareNumericAndBranch.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/257803012

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21255 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Harden %SetIsObserved with RUNTIME_ASSERTs

Now throws if its argument is already observed, or if the argument is
the global proxy.

BUG=371782
LOG=Y
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/274163002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21256 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Partially revert r21254 due to WebKit test failure.

TBR=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/280523002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21257 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
ARM: update defaults for flags

R=bmeurer@chromium.org, ulan@chromium.org

BUG=

Review URL: https://codereview.chromium.org/264593002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21258 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Harden runtime functions (part 6).

Also blacklist LiveEdit-related functions from generated runtime tests.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/279593004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21259 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix %SetFlags("--stress-compaction")

BUG=369943
LOG=N
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/261253006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21260 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/master'