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

sdk/lib/_internal/pub_generated/test/dart2js/compiles_entrypoints_in_root_package_test.dart

Index: sdk/lib/_internal/pub_generated/test/dart2js/compiles_entrypoints_in_root_package_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/dart2js/compiles_entrypoints_in_root_package_test.dart b/sdk/lib/_internal/pub_generated/test/dart2js/compiles_entrypoints_in_root_package_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..15bb7f964244808d99c70101bd5c6e74df2e4521
--- /dev/null
+++ b/sdk/lib/_internal/pub_generated/test/dart2js/compiles_entrypoints_in_root_package_test.dart
@@ -0,0 +1,81 @@
+import 'package:scheduled_test/scheduled_test.dart';
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+main() {
+  initConfig();
+  integration("compiles Dart entrypoints in root package to JS", () {
+    currentSchedule.timeout *= 3;
+    d.dir(
+        appPath,
+        [
+            d.appPubspec(),
+            d.dir(
+                'benchmark',
+                [
+                    d.file('file.dart', 'void main() => print("hello");'),
+                    d.file('lib.dart', 'void foo() => print("hello");'),
+                    d.dir('subdir', [d.file('subfile.dart', 'void main() => print("ping");')])]),
+            d.dir(
+                'foo',
+                [
+                    d.file('file.dart', 'void main() => print("hello");'),
+                    d.file('lib.dart', 'void foo() => print("hello");'),
+                    d.dir('subdir', [d.file('subfile.dart', 'void main() => print("ping");')])]),
+            d.dir(
+                'web',
+                [
+                    d.file('file.dart', 'void main() => print("hello");'),
+                    d.file('lib.dart', 'void foo() => print("hello");'),
+                    d.dir(
+                        'subdir',
+                        [d.file('subfile.dart', 'void main() => print("ping");')])])]).create();
+    schedulePub(
+        args: ["build", "benchmark", "foo", "web"],
+        output: new RegExp(r'Built 12 files to "build".'));
+    d.dir(
+        appPath,
+        [
+            d.dir(
+                'build',
+                [
+                    d.dir(
+                        'benchmark',
+                        [
+                            d.matcherFile('file.dart.js', isNot(isEmpty)),
+                            d.matcherFile('file.dart.precompiled.js', isNot(isEmpty)),
+                            d.nothing('file.dart'),
+                            d.nothing('lib.dart'),
+                            d.dir(
+                                'subdir',
+                                [
+                                    d.matcherFile('subfile.dart.js', isNot(isEmpty)),
+                                    d.matcherFile('subfile.dart.precompiled.js', isNot(isEmpty)),
+                                    d.nothing('subfile.dart')])]),
+                    d.dir(
+                        'foo',
+                        [
+                            d.matcherFile('file.dart.js', isNot(isEmpty)),
+                            d.matcherFile('file.dart.precompiled.js', isNot(isEmpty)),
+                            d.nothing('file.dart'),
+                            d.nothing('lib.dart'),
+                            d.dir(
+                                'subdir',
+                                [
+                                    d.matcherFile('subfile.dart.js', isNot(isEmpty)),
+                                    d.matcherFile('subfile.dart.precompiled.js', isNot(isEmpty)),
+                                    d.nothing('subfile.dart')])]),
+                    d.dir(
+                        'web',
+                        [
+                            d.matcherFile('file.dart.js', isNot(isEmpty)),
+                            d.matcherFile('file.dart.precompiled.js', isNot(isEmpty)),
+                            d.nothing('file.dart'),
+                            d.nothing('lib.dart'),
+                            d.dir(
+                                'subdir',
+                                [
+                                    d.matcherFile('subfile.dart.js', isNot(isEmpty)),
+                                    d.matcherFile('subfile.dart.precompiled.js', isNot(isEmpty)),
+                                    d.nothing('subfile.dart')])])])]).validate();
+  });
+}