Update pubspecs and dependencies to get pkgbuild tests working.

third_party/pkg/angular/test/filter/json_spec.dart

Index: third_party/pkg/angular/test/filter/json_spec.dart
diff --git a/third_party/pkg/angular/test/filter/json_spec.dart b/third_party/pkg/angular/test/filter/json_spec.dart
deleted file mode 100644
index 15ae9e42bdbb60d3b7ef9a18814c1ffc72bea09a..0000000000000000000000000000000000000000
--- a/third_party/pkg/angular/test/filter/json_spec.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-library json_spec;
-
-import '../_specs.dart';
-
-main() => describe('json', () {
-  it('should convert primitives, array, map to json', inject((Scope scope, Parser parser, FilterMap filters) {
-    scope.context['foo'] = [{"string":'foo', "number": 123, "bool": false}];
-    expect(parser('foo | json').eval(scope.context, filters)).toEqual('[{"string":"foo","number":123,"bool":false}]');
-  }));
-});