move TypeSystem classes to their own file

move TypeSystem classes to their own file
also sorted members per analyzer style (?)

figured it would be easier to work on as a 0.5k file vs ~15k resolver.dart :)

For now I left TypeProvider where it was. Not sure if it should move here or into its own file as well.

For backwards compat, all of the types are re-exported from resolver.dart.

R=brianwilkerson@google.com

Committed: https://github.com/dart-lang/sdk/commit/4c44096bf68d1446160d89f0e6c43e46b9ceed4b

[Jennifer Messerly, 2015-11-03 19:28:21]

Description was changed from

==========
move TypeSystem to its own file
==========

to

==========
move TypeSystem classes to their own file
also sorted members per analyzer style (?)

figured it would be easier to work on as a 0.5k file vs ~15k resolver.dart :)
==========

[Jennifer Messerly, 2015-11-03 19:28:21]

jmesserly@google.com changed reviewers:
+ brianwilkerson@google.com, leafp@google.com

[Jennifer Messerly, 2015-11-03 19:29:10]

Description was changed from

==========
move TypeSystem classes to their own file
also sorted members per analyzer style (?)

figured it would be easier to work on as a 0.5k file vs ~15k resolver.dart :)
==========

to

==========
move TypeSystem classes to their own file
also sorted members per analyzer style (?)

figured it would be easier to work on as a 0.5k file vs ~15k resolver.dart :)

For now I left TypeProvider where it was. Not sure if it should move here or
into its own file as well.

For backwards compat, all of the types are re-exported from resolver.dart.
==========

[Jennifer Messerly, 2015-11-03 19:29:38]

BTW, no code changes here. It's 100% move.

[Brian Wilkerson, 2015-11-03 19:36:39]

LGTM

[Jennifer Messerly, 2015-11-03 19:38:38]

Committed patchset #1 (id:1) manually as
4c44096bf68d1446160d89f0e6c43e46b9ceed4b (presubmit successful).