V8 seems to be particularly slow converting an undefined value to false
in BooleanValue.

Revert this when we upgrade to V8 3.17, or whenever the fix discussed
in http://code.google.com/p/v8/issues/detail?id=2487 lands in V8.

Problem 1: If stream.push() triggers a 'readable' event, and the user
calls `read(n)` with some n > the highWaterMark, then the push() will
return false (indicating that they should not push any more), but no
future 'readable' event is coming (because we're above the
highWaterMark).

Solution: return true from push() when needReadable is set.

Problem 2: A read(n) for n != 0, after the stream had encountered an
EOF, would not trigger the 'end' event if the EOF was pushed in
synchronously by the _read() function.

Solution: Check for ended in stream.read() and schedule an end event if
the length now equals 0.

Fix #4585

Improved assert check order of execution and added additional checks on
parameters to ensure no bad values make it through (e.g. negative offset
values).

Improvements:
* floating point operations are approx 4x's faster
* Now write quiet NaN's
* all read/write on floating point now done in C, so no more need for
  lib/buffer_ieee754.js
* float values have more accurate min/max value checks
* add additional benchmarks for buffers read/write
* created benchmark/_bench_timer.js which is a simple library that
  can be included into any benchmark and provides an intelligent tracker
  for sync and async tests
* add benchmarks for DataView set methods
* add checks and tests to make sure offset is greater than 0

IncomingMessage function contained duplicate initialization
of this._pendings. Line with one of those expressions has been
removed.

This update adds support for RFC 3490 separators for improved
compatibility with web browsers.

See http://code.google.com/p/v8/issues/detail?id=2493 for details.
Once the patch lands in upstream V8, this commit can be reverted.

* Allow wildcards only in left-most part of hostname identifier.
* Do not match CN if altnames are present

There was previously an assert() in there, but this part of the code is
so high-volume that the added cost made a measurable dent in http_simple.

Just checking inline is fine, though, and prevents a lot of potential
hazards.

Say that a stream's current read queue has 101 bytes in it, and the
underlying resource has ended (ie, reached EOF).

If you do something like this:

    stream.read(100); // leave a byte behind
    stream.read(0); // read(0) for some reason

then the read(0) will get 0 from the howMuchToRead function.  Since the
stream was ended, this was incorrectly treating the 0 as a "there is no
more in the buffer", and emitting 'end' before that last byte was read.

Why have the read(0) in the first place?  We do this in some cases to
trigger the last few bytes of a net socket (such as a child process's
stdio pipes).  This was causing issues when piping a `git archive` job
to a file: the resulting tarball was incomplete, because it occasionally
was not getting the last chunk.

see #4592

Raspberry Pi is an example.

BUG=v8:2393

Review URL: https://chromiumcodereview.appspot.com/11570061
Patch from Chi-Thanh Christopher Nguyen <nguyenchithanh@gmail.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13232 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is a backport of v8/v8@44419ad089b729a1aab4a5f27c0833e2ce69d28b.

Closes #3564.
Closes #4578.

Remove compiler switches from $(TOPLEVEL)/deps/v8/build/common.gypi,
we set them globally in $(TOPLEVEL)/common.gypi.

Commit 7b4d95a9 introduced the switches again, resulting in V8 getting
built without any optimizations.

This commit is essentially a rehash of commit 4b8629db.

* V8: update to 3.15.11.5

* node: remove ev-emul.h (Ben Noordhuis)

* path: make basename and extname ignore trailing slashes (Bert Belder)

* typed arrays: fix sunos signed/unsigned char issue (Ben Noordhuis)

* child_process: Fix {stdio:'inherit'} regression (Ben Noordhuis)

* child_process: Fix pipe() from child stdio streams  (Maciej Małecki)

* child_process: make fork() execPath configurable (Bradley Meck)

* stream: Add readable.push(chunk) method (isaacs)

* dtrace: x64 ustack helper (Fedor Indutny)

* repl: fix floating point number parsing (Nirk Niggler)

* repl: allow overriding builtins (Ben Noordhuis)

* net: add localAddress and localPort to Socket (James Hight)

* fs: make pool size coincide with ReadStream bufferSize (Shigeki Ohtsu)

* typed arrays: implement load and store swizzling (Dean McNamee)

* windows: fix perfctr crash on XP and 2003 (Scott Blomquist)

* dgram: fix double implicit bind error (Ben Noordhuis)

Conflicts:
	AUTHORS
	ChangeLog
	Makefile
	src/node_version.h

Fixes #4536

The int8_t and uint8_t typedefs on sunos/smartos depend on a number of
compiler directives. Avoid ambiguity and specify signed and unsigned
char explicitly.

Fixes the following build error:

  ../src/stream_wrap.cc: In static member function 'static void*
  node::WriteWrap::operator new(size_t)':
  ../src/stream_wrap.cc:70:49: warning: no return statement in function
  returning non-void [-Wreturn-type]
  In file included from ../src/v8_typed_array.cc:26:0:
  ../src/v8_typed_array_bswap.h: In function 'T
  v8_typed_array::SwapBytes(T) [with T = signed char]':
  ../src/v8_typed_array_bswap.h:150:23:   instantiated from 'T
  v8_typed_array::LoadAndSwapBytes(void*) [with T = signed char]'
  ../src/v8_typed_array.cc:694:7:   instantiated from 'static
  v8::Handle<v8::Value> {anonymous}::DataView::getGeneric(const
  v8::Arguments&) [with T = signed char]'
  ../src/v8_typed_array.cc:738:40:   instantiated from here
  ../src/v8_typed_array_bswap.h:125:16: error: size of array is
  negative

This reverts commit 35a137cf.

It only does the right thing on unix, and the implementation
isn't great either.

This reverts commit bb1c0398.

The better to keep the IncomingMessage class isomorphic and avoid
creating additional hidden classes.

v8's common.gypi file expects them to be defined now.

Closes #4534.

For example, to cross-compile from my OS X laptop for Raspberry Pi, you would
do something like:

  $ make binary BINARYNAME=node-v`python tools/getnodeversion.py`-linux-arm-pi \
      DESTCPU=arm CONFIG_FLAGS="--dest-os=linux"

Raspberry Pi is an example.

BUG=v8:2393

Review URL: https://chromiumcodereview.appspot.com/11570061
Patch from Chi-Thanh Christopher Nguyen <nguyenchithanh@gmail.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13232 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is a backport of v8/v8@44419ad089b729a1aab4a5f27c0833e2ce69d28b.