Fixed [:foo:]-style markdown links and added lookup within the library

Fixed [:foo:]-style markdown links and added lookup within the library

R=efortuna@google.com

Committed: https://code.google.com/p/dart/source/detail?r=25755

[Tate Mandel, 2013-08-02 22:38:15]

I also fixed a bug where checking for mixins would throw an exception if the SDK
were not being parsed.

[Emily Fortuna, 2013-08-02 23:26:55]

https://codereview.chromium.org/21999002/diff/4001/pkg/docgen/lib/docgen.dart
File pkg/docgen/lib/docgen.dart (right):

https://codereview.chromium.org/21999002/diff/4001/pkg/docgen/lib/docgen.dart...
pkg/docgen/lib/docgen.dart:50: /// Add support for [:foo:]-style code to the
markdown parser.
nit: can we make this comment slightly clearer: support for [:foo:]-style code
comments...

https://codereview.chromium.org/21999002/diff/4001/pkg/docgen/lib/docgen.dart...
pkg/docgen/lib/docgen.dart:347: if (classScope != null) reference =
classScope.qualifiedName;
if you have an else branch, go ahead and put the if branch also on a separate
line:
if (classScope...) {
  reference = ...;
} else  {
 ...
}

[Tate Mandel, 2013-08-02 23:54:35]

https://codereview.chromium.org/21999002/diff/4001/pkg/docgen/lib/docgen.dart
File pkg/docgen/lib/docgen.dart (right):

https://codereview.chromium.org/21999002/diff/4001/pkg/docgen/lib/docgen.dart...
pkg/docgen/lib/docgen.dart:50: /// Add support for [:foo:]-style code to the
markdown parser.
On 2013/08/02 23:26:55, Emily Fortuna wrote:
> nit: can we make this comment slightly clearer: support for [:foo:]-style code
> comments...

Done.

https://codereview.chromium.org/21999002/diff/4001/pkg/docgen/lib/docgen.dart...
pkg/docgen/lib/docgen.dart:347: if (classScope != null) reference =
classScope.qualifiedName;
On 2013/08/02 23:26:55, Emily Fortuna wrote:
> if you have an else branch, go ahead and put the if branch also on a separate
> line:
> if (classScope...) {
>   reference = ...;
> } else  {
>  ...
> }

Done.

[Emily Fortuna, 2013-08-03 00:05:38]

lgtm

[Tate Mandel, 2013-08-03 00:06:54]

Committed patchset #3 manually as r25755 (presubmit successful).