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

sdk/lib/_internal/pub_generated/test/cache/list_test.dart

+library pub_cache_test;
+import 'package:path/path.dart' as path;
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+main() {
+  initConfig();
+  hostedDir(package) {
+    return path.join(
+        sandboxDir,
+        cachePath,
+        "hosted",
+        "pub.dartlang.org",
+        package);
+  }
+  integration('running pub cache list when there is no cache', () {
+    schedulePub(args: ['cache', 'list'], output: '{"packages":{}}');
+  });
+  integration('running pub cache list on empty cache', () {
+    d.dir(
+        cachePath,
+        [d.dir('hosted', [d.dir('pub.dartlang.org', [])])]).create();
+    schedulePub(args: ['cache', 'list'], outputJson: {
+      "packages": {}
+    });
+  });
+  integration('running pub cache list', () {
+    d.dir(
+        cachePath,
+        [
+            d.dir(
+                'hosted',
+                [
+                    d.dir(
+                        'pub.dartlang.org',
+                        [
+                            d.dir("foo-1.2.3", [d.libPubspec("foo", "1.2.3"), d.libDir("foo")]),
+                            d.dir(
+                                "bar-2.0.0",
+                                [d.libPubspec("bar", "2.0.0"), d.libDir("bar")])])])]).create();
+    schedulePub(args: ['cache', 'list'], outputJson: {
+      "packages": {
+        "bar": {
+          "2.0.0": {
+            "location": hostedDir('bar-2.0.0')
+          }
+        },
+        "foo": {
+          "1.2.3": {
+            "location": hostedDir('foo-1.2.3')
+          }
+        }
+      }
+    });
+  });
+  integration('includes packages containing deps with bad sources', () {
+    d.dir(
+        cachePath,
+        [
+            d.dir(
+                'hosted',
+                [
+                    d.dir(
+                        'pub.dartlang.org',
+                        [d.dir("foo-1.2.3", [d.libPubspec("foo", "1.2.3", deps: {
+              "bar": {
+                "bad": "bar"
+              }
+            }), d.libDir("foo")])])])]).create();
+    schedulePub(args: ['cache', 'list'], outputJson: {
+      "packages": {
+        "foo": {
+          "1.2.3": {
+            "location": hostedDir('foo-1.2.3')
+          }
+        }
+      }
+    });
+  });
+}