Fix reparsing of function parameters that include type parameters.

Fix reparsing of function parameters that include type parameters.

The parser is now properly initializing parsed_function/current_function to make
internal lookups work (instead of crashing).

BUG=
R=hausner@google.com, rmacnak@google.com

Committed: https://code.google.com/p/dart/source/detail?r=27418

[hausner, 2013-09-11 20:57:58]

LGTM.

[rmacnak, 2013-09-11 21:17:21]

https://codereview.chromium.org/24019007/diff/1/tests/lib/mirrors/parameter_t...
File tests/lib/mirrors/parameter_test.dart (right):

https://codereview.chromium.org/24019007/diff/1/tests/lib/mirrors/parameter_t...
tests/lib/mirrors/parameter_test.dart:157: ' type = Type(s(S) in s(C)))]',
We should probably check that it is specifically a TypeVariable.

[Michael Lippautz (Google), 2013-09-11 21:52:41]

Note: dart2js is not affected, since they don't use it, yet.

https://codereview.chromium.org/24019007/diff/1/tests/lib/mirrors/parameter_t...
File tests/lib/mirrors/parameter_test.dart (right):

https://codereview.chromium.org/24019007/diff/1/tests/lib/mirrors/parameter_t...
tests/lib/mirrors/parameter_test.dart:157: ' type = Type(s(S) in s(C)))]',
On 2013/09/11 21:17:21, Ryan Macnak wrote:
> We should probably check that it is specifically a TypeVariable.

Done.

[rmacnak, 2013-09-12 01:05:23]

lgtm

[Michael Lippautz (Google), 2013-09-12 01:06:49]

Committed patchset #2 manually as r27418 (presubmit successful).