Bump analyzer//front_end//kernel package versions.

pkg/analyzer/pubspec.yaml

Index: pkg/analyzer/pubspec.yaml
diff --git a/pkg/analyzer/pubspec.yaml b/pkg/analyzer/pubspec.yaml
index e1fb8b865926d28328e86db95c8455143e1efdd3..252b0bc114359d5d4d58214025d1f21969c11397 100644
--- a/pkg/analyzer/pubspec.yaml
+++ b/pkg/analyzer/pubspec.yaml
@@ -1,21 +1,21 @@
 name: analyzer
-version: 0.30.0+2
+version: 0.31.0-alpha.0
 author: Dart Team <misc@dartlang.org>
 description: Static analyzer for Dart.
 homepage: https://github.com/dart-lang/sdk/tree/master/pkg/analyzer
 environment:
-  sdk: '>=1.20.0 <2.0.0'
+  sdk: '>=1.20.0 <2.0.0-dev.infinity'
 dependencies:
   args: '>=0.12.1 <2.0.0'
   charcode: ^1.1.0
   collection: ^1.10.1
   convert: ^2.0.0
   crypto: '>=1.1.1 <3.0.0'
-  front_end: 0.1.0-alpha.4
+  front_end: 0.1.0-alpha.5
   glob: ^1.0.3
   html: '>=0.12.0 <1.14.0'
   isolate: '>=0.2.2 <2.0.0'
-  kernel: 0.3.0-alpha.1
+  kernel: 0.3.0-alpha.2
   meta: ^1.0.2
   package_config: '>=0.1.5 <2.0.0'
   path: '>=0.9.0 <2.0.0'