Split up large resolver_test.dart file.

Split up large resolver_test.dart file.

This splits the four largest classes out of resolver_test.dart
and into their own files.  Hopefully this should help prevent
resolver_test.dart from timing out on the buildbots.

R=scheglov@google.com

Committed: https://code.google.com/p/dart/source/detail?r=41085

[Paul Berry, 2014-10-13 21:33:28]

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

[Paul Berry, 2014-10-13 21:33:29]

Note: the code review tool refused to upload the diff for
pkg/analyzer/test/generated/resolver_test.dart due to its large size.  The only
change to that file is to remove the classes CompileTimeErrorCodeTest,
NonErrorResolverTest, StaticWarningCodeTest, and StaticTypeWarningCodeTest (the
four classes which are moved to their own files by this CL).

[scheglov, 2014-10-13 21:39:37]

LGTM

We probably want to structure tests as they were structured in the Java version.
I.e. create "parser", "resolver", etc folders with separate test files.
We don't have to slice them on the same number of pieces, just make these files
of reasonable size.

Not in this CL of course.

[Paul Berry, 2014-10-13 21:43:42]

Committed patchset #2 (id:110001) manually as 41085 (presubmit successful).