pkg/matcher: refactored code around data-structure vs execution-based matchers

Also fixed a spelling error.

R=sigmund@google.com

Review URL: https://codereview.chromium.org//438473002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/matcher@38807 260f80e4-7a28-3924-810f-c04153c831b5
17 files changed
tree: 9a1f0c42959d3cc8be74abfba3dac3294bd286ac
  1. CHANGELOG.md
  2. LICENSE
  3. README.md
  4. lib/
  5. pubspec.yaml
  6. test/
README.md

Support for specifying test expectations, such as for unit tests.

The matcher library provides a third-generation assertion mechanism, drawing inspiration from Hamcrest.

For more information, see Unit Testing with Dart.