Update pubspecs and dependencies to get pkgbuild tests working.

third_party/pkg/angular/scripts/test-expression-extractor.sh

Index: third_party/pkg/angular/scripts/test-expression-extractor.sh
diff --git a/third_party/pkg/angular/scripts/test-expression-extractor.sh b/third_party/pkg/angular/scripts/test-expression-extractor.sh
deleted file mode 100755
index 2676828c3e1d1f75f92ec409ed907c206794d8f7..0000000000000000000000000000000000000000
--- a/third_party/pkg/angular/scripts/test-expression-extractor.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/bash
-
-set -e
-
-(cd demo/todo; pub get)
-
-OUT=$(mktemp XXX.dart)
-
-dart bin/expression_extractor.dart demo/todo/main.dart demo/todo /dev/null /dev/null $OUT
-
-if [[ -e $OUT ]]; then
-  echo "Expression extractor created an output file"
-  rm $OUT
-  exit;
-fi;
-
-# The file did not exist, exit with error.
-exit 1