Add package root support to analysis server.

Add package root support to analysis server.

Not yet hooked up in Dart editor.

R=scheglov@google.com

Committed: https://code.google.com/p/dart/source/detail?r=41292

[Paul Berry, 2014-10-24 16:56:22]

paulberry@google.com changed reviewers:
+ scheglov@google.com

[scheglov, 2014-10-24 18:45:18]

lgtm

https://codereview.chromium.org/679763002/diff/1/pkg/analysis_server/lib/src/...
File pkg/analysis_server/lib/src/context_manager.dart (right):

https://codereview.chromium.org/679763002/diff/1/pkg/analysis_server/lib/src/...
pkg/analysis_server/lib/src/context_manager.dart:69: Map<String, String>
packageRoots = <String, String>{};
Are we going to use it?
Should we just use it instead of normalizedPackageRoots?

[Paul Berry, 2014-10-24 20:26:50]

https://codereview.chromium.org/679763002/diff/1/pkg/analysis_server/lib/src/...
File pkg/analysis_server/lib/src/context_manager.dart (right):

https://codereview.chromium.org/679763002/diff/1/pkg/analysis_server/lib/src/...
pkg/analysis_server/lib/src/context_manager.dart:69: Map<String, String>
packageRoots = <String, String>{};
On 2014/10/24 18:45:18, scheglov wrote:
> Are we going to use it?

We do use it, in refresh().

> Should we just use it instead of normalizedPackageRoots?

I'm not sure.  I'm planning to follow up with some additional cleanups; I'll
keep it in mind.

[Paul Berry, 2014-10-24 20:29:31]

Committed patchset #1 (id:1) manually as 41292 (presubmit successful).