Add access to process id for both current process and processes started

Add access to process id for both current process and processes started

BUG=https://code.google.com/p/dart/issues/detail?id=9129

R=ajohnsen@google.com

Committed: https://code.google.com/p/dart/source/detail?r=21611

[Anders Johnsen, 2013-04-17 09:13:06]

LGTM!

https://codereview.chromium.org/14322011/diff/1/runtime/bin/process_patch.dart
File runtime/bin/process_patch.dart (right):

https://codereview.chromium.org/14322011/diff/1/runtime/bin/process_patch.dar...
runtime/bin/process_patch.dart:332: const _ProcessResult(int this.pid,
I'm not sure it makes sense to get the pid of an already terminated process?

https://codereview.chromium.org/14322011/diff/1/sdk/lib/io/process.dart
File sdk/lib/io/process.dart (right):

https://codereview.chromium.org/14322011/diff/1/sdk/lib/io/process.dart#newco...
sdk/lib/io/process.dart:58: * Returns the PID if the current process.
Move to Process.currentPid static getter?

[Søren Gjesse, 2013-04-17 10:15:12]

https://codereview.chromium.org/14322011/diff/1/runtime/bin/process_patch.dart
File runtime/bin/process_patch.dart (right):

https://codereview.chromium.org/14322011/diff/1/runtime/bin/process_patch.dar...
runtime/bin/process_patch.dart:332: const _ProcessResult(int this.pid,
On 2013/04/17 09:13:06, Anders Johnsen wrote:
> I'm not sure it makes sense to get the pid of an already terminated process?

Not sure either, but sometimes processes write files including the pid it had,
so it might be handy. I will keep it there.

https://codereview.chromium.org/14322011/diff/1/sdk/lib/io/process.dart
File sdk/lib/io/process.dart (right):

https://codereview.chromium.org/14322011/diff/1/sdk/lib/io/process.dart#newco...
sdk/lib/io/process.dart:58: * Returns the PID if the current process.
On 2013/04/17 09:13:06, Anders Johnsen wrote:
> Move to Process.currentPid static getter?

I think the top level getter fits with the top level exitCode setter.

[Søren Gjesse, 2013-04-17 10:15:39]

Committed patchset #1 manually as r21611 (presubmit successful).