Add support for generic function type syntax, part 1

Add support for generic function type syntax, part 1

R=scheglov@google.com

Committed: https://github.com/dart-lang/sdk/commit/1cd918533d31583e81326409b2afc9cccf127def

[Brian Wilkerson, 2017-01-07 18:42:33]

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

[Brian Wilkerson, 2017-01-07 18:42:34]

This introduces the new classes and replaces many references to TypeName with
references to the new superclass TypeAnnotation. I think I've caught all of the
references to TypeName that need to be replaced (with the exception of those in
the parser), but that will be easier to judge when you review the next CL, which
is when I'll rename TypeName.

The next step after that will be to make the parser changes.

[scheglov, 2017-01-07 18:55:44]

LGTM

[Brian Wilkerson, 2017-01-11 21:12:12]

Description was changed from

==========
Add support for generic function type syntax, part 1
==========

to

==========
Add support for generic function type syntax, part 1

R=scheglov@google.com

Committed:
https://github.com/dart-lang/sdk/commit/1cd918533d31583e81326409b2afc9cccf127def
==========

[Brian Wilkerson, 2017-01-11 21:12:15]

Committed patchset #1 (id:1) manually as
1cd918533d31583e81326409b2afc9cccf127def (presubmit successful).