MIPS: Fix usage of EmitBranch in compare-minus-zero-and-branch.

Port r17669 (132efad)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/71003003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17675 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Simplify behavior of code stubs that accept a variable number of stack
arguments in addition to their parameters. Before, we'd add a special
variable to the environment with the value of a register with the
number of arguments. Now, that register just appears as a parameter to
the code stub.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/70203002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17680 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Provide private symbols through internal APIs

Adds a notion of private symbols, mainly intended for internal use, especially, self-hosting of built-in types that would otherwise require new C++ classes.

On the JS side (i.e., in built-ins), private properties can be created and accessed through a set of macros:

  NEW_PRIVATE(print_name)
  HAS_PRIVATE(obj, sym)
  GET_PRIVATE(obj, sym)
  SET_PRIVATE(obj, sym, val)
  DELETE_PRIVATE(obj, sym)

In the V8 API, they are accessible via a new class Private, and respective HasPrivate/Get/Private/SetPrivate/DeletePrivate methods on calss Object.

These APIs are designed and restricted such that their implementation can later be replaced by whatever ES7+ will officially provide.

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/48923002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17683 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[Sheriff] Mark flaky webkit test.

TBR=jkummerow@chromium.org
BUG=v8:2989

Review URL: https://codereview.chromium.org/68573003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Change table size for trigonometric functions.

Sunspider verifies floating point results to the last bit, so this is to
make sure that we return the expected result.

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/71123003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17685 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[Sheriff] Mark flaky webkit test.

TBR=jkummerow@chromium.org
BUG=v8:2989

Review URL: https://codereview.chromium.org/62283008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17686 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix warnings

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/71373003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17688 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Prepare push to trunk.  Now working on version 3.23.4.

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/71443002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17689 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add lexer-shell for running lexer benchmarks.

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/70263003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix shared library build after r17692.

BUG=
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/70663003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17693 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/master'