Fix strong mode warnings.
Merge pull request #411 from dart-lang/0.11.x-strong

Fix all strong mode warnings in 0.11.x.
tree: eaf166b859d8c6ee67ed23ce9d1235d937830834
  1. lib/
  2. test/
  3. .gitignore
  4. .status
  5. CHANGELOG.md
  6. codereview.settings
  7. LICENSE
  8. pubspec.yaml
  9. README.md
README.md

The unittest package has been renamed test. It will export test's API through the 0.12.x branch, but it is deprecated and test should be used instead.