node::Environment isn't accessible to user APIs, so extend smalloc to
also accept v8::Isolate.

Fixes: 75adde0 "src: remove `node_isolate` from source"
PR-URL: nodejs/node#905
Reviewed-by: Fedor Indutny <fedor@indutny.com>

Original commit message:

  Fix --max_old_space_size=4096 integer overflow.

  BUG=v8:3857
  LOG=N

  Review URL: https://codereview.chromium.org/897543002

  Cr-Commit-Position: refs/heads/master@{#26510}

PR-URL: #9200
Reviewed-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>

Reviewed-By:
PR-URL: #9185

The -fno-strict-aliasing flag was added to fix compilation warnings when
building Node.js with GCC <= 4.4

Reviewed-By:
PR-URL: #9185

process.send() should be synchronous, it should block until the message
has been sent in full, but it wasn't after the second-to-last libuv
upgrade because of commit libuv/libuv@393c1c5 ("unix: set non-block
mode in uv_{pipe,tcp,udp}_open"), which made its way into io.js in
commit 07bd05b ("deps: update libuv to 1.2.1").

Commit libuv/libuv@b36d4ff ("unix: implement uv_stream_set_blocking()")
as landed in io.js in commit 9681fca ("deps: update libuv to 1.4.0")
makes it possible to restore the synchronous behavior again and that's
precisely what this commit does.

The same line of reasoning applies to `net.Socket({ fd: 1 })`: creating
a socket object from a stdio file descriptor, like the `process.stdout`
getter does, should put the file descriptor in blocking mode for
compatibility reasons.

Reviewed-By:
PR-URL: #9185