Reapply "Remove @deprecated features."

Reapply "Remove @deprecated features."

R=scheglov@google.com, sgjesse@google.com

Committed: https://code.google.com/p/dart/source/detail?r=29535

[Lasse Reichstein Nielsen, 2013-10-29 15:43:38]

I had to remove some uses of the deprecated features too.
I hope I have them all now.

Please check that the rewrites are correct.
I changed:
 notifyProperty(obs, #symb) 
to
 obs.notifyPropertyChange(#symb, null, null)
,
 File.directory
to 
 File.parent
and
 File.fullPath[Sync]
to
 File.resolveSymbolicLinks[Sync]

[Søren Gjesse, 2013-10-29 20:21:26]

lgtm, thanks for doing this

[scheglov, 2013-10-29 20:34:02]

LGTM analyzer changes

[Cutch, 2013-10-30 07:30:26]

I have my own CL pending for the vmservice changes.

[Lasse Reichstein Nielsen, 2013-10-30 08:58:04]

On 2013/10/30 07:30:26, Cutch wrote:
> I have my own CL pending for the vmservice changes.

Do say when it's committed (which I hope is today :). 
I'll check if I can revert the vmservice changes and still run the tests,
otherwise I'll wait for your CL.

[Cutch, 2013-10-30 09:04:44]

I doubt it will be committed today. Reviewers haven't gotten around to it. Go
ahead and make the vmservice changes, the merge will be easy for me.

[Lasse Reichstein Nielsen, 2013-10-30 10:25:58]

Excellent. Thanks!

[Lasse Reichstein Nielsen, 2013-10-30 12:09:40]

Committed patchset #3 manually as r29535 (presubmit successful).

[srdjan, 2013-10-30 23:25:07]

FYI: this CL seems to have broken VanillaCompileDart2JS benchmark.