This is a holdback from Dart 1 where some syntax or type errors were not
reported until runtime.

* prep for release

 Allow for multiple calls to executable.main()

- Fix some new implicit cast warnings.
- Adjust expectations for new source_span output.

In version `1.5.0` of `source_span` the output for multi-line spans was
updated to output the content and highlight a section with lines on the
left instead of the old `^^^^^` format. Update the expectations
accordingly to expect that a bit of the multi-line content is printed.

Fixes https://github.com/dart-lang/test/issues/943

Fix DartDocs links

Also adjust the platform-specific-configuration links.

Fix broken links

* Refactor test into two packages (#1)

* move test and test_core to packages folder

* rename test_core to test_api

* rename packages to pkgs, add dart.js back to repo

* change pubspec to point to test_api version

* move to correct dir in travis.yml

* Remove duplicate utils.dart

- Remove APIs that are no longer used.
- Switch to `TypeMatcher` instead of manual implementation for exception
  matchers.
- Drop `isDart2` since we only run in Dart 2 mode everywhere.

* Allow remote_listener to be closed and sent an event on close.

Clean up a few violations that weren't corrected by dartfmt --fix.
Dartfmt would eventually fix these but a new version of the tool needs
to be published.

- Run `dartfmt --fix`
- Limit to 2.0.0 stable and newer SDK.

Fixes #915

When there is no `const` the expression is parsed as a
`MethodInvocation` instead of an `InstanceCreationExpression`. Update
all the places we were casting to the latter so that it can handle
either case.

Add some additional tests for import prefix cases.

* add precompiled json reporter tests

* fix json reporter to not assume file uris for frames

* update pubspec/changelog

Prepare to publish version 1.3.2