Fix some broken pkgbuild tests.

tools/testing/dart/test_suite.dart

Index: tools/testing/dart/test_suite.dart
diff --git a/tools/testing/dart/test_suite.dart b/tools/testing/dart/test_suite.dart
index 66b6a1e54f36e1152f82c71a3d8d3ea439c5e9ca..533c01cb6b56da39412e76586007cb5f2d742482 100644
--- a/tools/testing/dart/test_suite.dart
+++ b/tools/testing/dart/test_suite.dart
@@ -895,6 +895,12 @@ class StandardTestSuite extends TestSuite {
       var packageDirectories = {};
       if (configuration['use_repository_packages']) {
         packageDirectories = new Map.from(localPackageDirectories);
+
+        // Don't create a dependency override for pub, since it's an application
+        // package and it has a dependency on compiler_unsupported which isn't
+        // in the repo.
+        packageDirectories.remove('pub');
+
         // Do not create an dependency override for the package itself.
         if (packageDirectories.containsKey(packageName)) {
           packageDirectories.remove(packageName);
@@ -1988,6 +1994,12 @@ class PkgBuildTestSuite extends TestSuite {
         var packageDirectories = {};
         if (!configuration['use_public_packages']) {
           packageDirectories = new Map.from(localPackageDirectories);
+
+          // Don't create a dependency override for pub, since it's an
+          // application package and it has a dependency on compiler_unsupported
+          // which isn't in the repo.
+          packageDirectories.remove('pub');
+
           if (packageDirectories.containsKey(packageName)) {
             packageDirectories.remove(packageName);
           }