Store the async-await compiled pub code directly in the repo.

sdk/lib/_internal/pub_generated/test/get/git/require_pubspec_name_test.dart

+library pub_tests;
+import 'package:scheduled_test/scheduled_test.dart';
+import '../../../lib/src/exit_codes.dart' as exit_codes;
+import '../../descriptor.dart' as d;
+import '../../test_pub.dart';
+main() {
+  initConfig();
+  integration(
+      'requires the dependency to have a pubspec with a name ' 'field',
+      () {
+    ensureGit();
+    d.git('foo.git', [d.libDir('foo'), d.pubspec({})]).create();
+    d.appDir({
+      "foo": {
+        "git": "../foo.git"
+      }
+    }).create();
+    pubGet(
+        error: contains('Missing the required "name" field.'),
+        exitCode: exit_codes.DATA);
+  });
+}