Create a new class for parser tests that test top level constructs.

Create a new class for parser tests that test top level constructs.

These parser tests should be easy to port over to Fasta; the others
will be more difficult because they invoke parser methods that may not
have exact analogues in Fasta's parser.

This CL is almost entirely code motion; the only substantive changes
are the creation of the new class TopLevelParserTest, and the creation
of the new mixin ParserTestHelpers (for the helper methods needed by
TopLevelParserTest).

R=brianwilkerson@google.com, scheglov@google.com

Committed: https://github.com/dart-lang/sdk/commit/d5f44ff8be73c0c7cfd0f61141b6326a8e734a16

[Paul Berry, 2017-02-16 18:52:31]

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

[scheglov, 2017-02-16 18:54:51]

LGTM

[Brian Wilkerson, 2017-02-16 18:57:41]

lgtm

[Paul Berry, 2017-02-16 19:31:17]

Description was changed from

==========
Create a new class for parser tests that test top level constructs.

These parser tests should be easy to port over to Fasta; the others
will be more difficult because they invoke parser methods that may not
have exact analogues in Fasta's parser.

This CL is almost entirely code motion; the only substantive changes
are the creation of the new class TopLevelParserTest, and the creation
of the new mixin ParserTestHelpers (for the helper methods needed by
TopLevelParserTest).
==========

to

==========
Create a new class for parser tests that test top level constructs.

These parser tests should be easy to port over to Fasta; the others
will be more difficult because they invoke parser methods that may not
have exact analogues in Fasta's parser.

This CL is almost entirely code motion; the only substantive changes
are the creation of the new class TopLevelParserTest, and the creation
of the new mixin ParserTestHelpers (for the helper methods needed by
TopLevelParserTest).

R=brianwilkerson@google.com, scheglov@google.com

Committed:
https://github.com/dart-lang/sdk/commit/d5f44ff8be73c0c7cfd0f61141b6326a8e734a16
==========

[Paul Berry, 2017-02-16 19:31:18]

Committed patchset #1 (id:1) manually as
d5f44ff8be73c0c7cfd0f61141b6326a8e734a16 (presubmit successful).