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

sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_transitive_dependencies_test.dart

Index: sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_transitive_dependencies_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_transitive_dependencies_test.dart b/sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_transitive_dependencies_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..e7924a4a89e4a585501e68b0d487fb4003b3e32c
--- /dev/null
+++ b/sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_transitive_dependencies_test.dart
@@ -0,0 +1,27 @@
+library pub_tests;
+import 'package:path/path.dart' as p;
+import 'package:scheduled_test/scheduled_test.dart';
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+main() {
+  initConfig();
+  integration(
+      "doesn't create a snapshot for transitive dependencies' " "executables",
+      () {
+    servePackages((builder) {
+      builder.serve("foo", "1.2.3", deps: {
+        'bar': '1.2.3'
+      });
+      builder.serve(
+          "bar",
+          "1.2.3",
+          contents: [
+              d.dir("bin", [d.file("hello.dart", "void main() => print('hello!');")])]);
+    });
+    d.appDir({
+      "foo": "1.2.3"
+    }).create();
+    pubGet();
+    d.nothing(p.join(appPath, '.pub', 'bin', 'bar')).validate();
+  });
+}