* Seems like a lint was renamed.

Lint `- unnecessary_brace_in_string_interp` is not in the list here: http://dart-lang.github.io/linter/lints/

In linter [0.1.30](https://github.com/dart-lang/linter/blob/9652dd44b6b32d5c8fc0262f67e037842ef207cc/CHANGELOG.md#0130): [http://dart-lang.github.io/linter/lints/unnecessary_brace_in_string_interp.html](unnecessary_brace_in_string_interp)
In linter [0.1.2](https://github.com/dart-lang/linter/blob/9652dd44b6b32d5c8fc0262f67e037842ef207cc/CHANGELOG.md#012): [http://dart-lang.github.io/linter/lints/unnecessary_brace_in_string_interps.html](unnecessary_brace_in_string_interps)

* Fix lint tests. analyze_once_test.dart and create_test.dart