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

sdk/lib/_internal/pub_generated/test/run/errors_if_path_in_dependency_test.dart

+import '../../lib/src/exit_codes.dart' as exit_codes;
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+main() {
+  initConfig();
+  integration(
+      'Errors if the executable is in a subdirectory in a ' 'dependency.',
+      () {
+    d.dir("foo", [d.libPubspec("foo", "1.0.0")]).create();
+    d.dir(appPath, [d.appPubspec({
+        "foo": {
+          "path": "../foo"
+        }
+      })]).create();
+    schedulePub(args: ["run", "foo:sub/dir"], error: """
+Cannot run an executable in a subdirectory of a dependency.
+
+Usage: pub run <executable> [args...]
+-h, --help    Print usage information for this command.
+
+Run "pub help" to see global options.
+""", exitCode: exit_codes.USAGE);
+  });
+}