Update pubspecs and dependencies to get pkgbuild tests working.

third_party/pkg/angular/lib/filter/uppercase.dart

Index: third_party/pkg/angular/lib/filter/uppercase.dart
diff --git a/third_party/pkg/angular/lib/filter/uppercase.dart b/third_party/pkg/angular/lib/filter/uppercase.dart
deleted file mode 100644
index 6627fce31cffe0b2683a679e2a39b9e9013bc3fb..0000000000000000000000000000000000000000
--- a/third_party/pkg/angular/lib/filter/uppercase.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-part of angular.filter;
-
-/**
- * Converts string to uppercase.
- *
- * Usage:
- *
- *     {{ uppercase_expression | uppercase }}
- */
-@NgFilter(name:'uppercase')
-class UppercaseFilter {
-  call(String text) => text == null ? text : text.toUpperCase();
-}