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

sdk/lib/_internal/pub_generated/test/serve/serves_web_and_test_dirs_by_default_test.dart

Index: sdk/lib/_internal/pub_generated/test/serve/serves_web_and_test_dirs_by_default_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/serve/serves_web_and_test_dirs_by_default_test.dart b/sdk/lib/_internal/pub_generated/test/serve/serves_web_and_test_dirs_by_default_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..c017916ffa9e958923e9d636cda16a16dda2af18
--- /dev/null
+++ b/sdk/lib/_internal/pub_generated/test/serve/serves_web_and_test_dirs_by_default_test.dart
@@ -0,0 +1,21 @@
+library pub_tests;
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+import 'utils.dart';
+main() {
+  initConfig();
+  integration("serves web/ and test/ dirs by default", () {
+    d.dir(
+        appPath,
+        [
+            d.appPubspec(),
+            d.dir("web", [d.file("foo", "contents")]),
+            d.dir("test", [d.file("bar", "contents")]),
+            d.dir("example", [d.file("baz", "contents")])]).create();
+    pubServe();
+    requestShouldSucceed("foo", "contents", root: "web");
+    requestShouldSucceed("bar", "contents", root: "test");
+    requestShould404("baz", root: "web");
+    endPubServe();
+  });
+}