Support the latest package:analyzer (#146)

Author: natebosch

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.5.7
+
+* Support for package:analyzer 0.30.0
+
 ## 0.5.6
 
 * Support for package:build 0.9.0

pubspec.yaml

@@ -1,12 +1,12 @@
 name: source_gen
-version: 0.5.6
+version: 0.5.7
 author: Dart Team <[email protected]>
 description: Automatic sourcecode generation for Dart
 homepage: https://github.com/dart-lang/source_gen
 environment:
   sdk: '>=1.21.1 <2.0.0'
 dependencies:
-  analyzer: ^0.29.2
+  analyzer: '>=0.29.2 <0.31.0'
   build: ^0.9.0
   dart_style: '>=0.1.7 <2.0.0'
   path: ^1.3.2