Revert "Use scheduled_test for Pub tests."

utils/tests/pub/install/broken_symlink_test.dart

Index: utils/tests/pub/install/broken_symlink_test.dart
diff --git a/utils/tests/pub/install/broken_symlink_test.dart b/utils/tests/pub/install/broken_symlink_test.dart
index 76540dc896011715c8d8b357c81d8f62c902b963..07a5530f556242269b8065c98cbe31b57ddc920f 100644
--- a/utils/tests/pub/install/broken_symlink_test.dart
+++ b/utils/tests/pub/install/broken_symlink_test.dart
@@ -7,18 +7,18 @@ library pub_tests;
 import 'dart:io';
 
 import '../../../../pkg/pathos/lib/path.dart' as path;
+import '../../../../pkg/unittest/lib/unittest.dart';
 
-import '../descriptor.dart' as d;
 import '../test_pub.dart';
 
 main() {
   initConfig();
   integration('replaces a broken "packages" symlink', () {
-    d.dir(appPath, [
-      d.appPubspec([]),
-      d.libDir('foo'),
-      d.dir("bin")
-    ]).create();
+    dir(appPath, [
+      appPubspec([]),
+      libDir('foo'),
+      dir("bin")
+    ]).scheduleCreate();
 
     // Create a broken "packages" symlink in "bin".
     scheduleSymlink("nonexistent", path.join(appPath, "packages"));
@@ -26,23 +26,23 @@ main() {
     schedulePub(args: ['install'],
         output: new RegExp(r"Dependencies installed!$"));
 
-    d.dir(appPath, [
-      d.dir("bin", [
-        d.dir("packages", [
-          d.dir("myapp", [
-            d.file('foo.dart', 'main() => "foo";')
+    dir(appPath, [
+      dir("bin", [
+        dir("packages", [
+          dir("myapp", [
+            file('foo.dart', 'main() => "foo";')
           ])
         ])
       ])
-    ]).validate();
+    ]).scheduleValidate();
   });
 
   integration('replaces a broken secondary "packages" symlink', () {
-    d.dir(appPath, [
-      d.appPubspec([]),
-      d.libDir('foo'),
-      d.dir("bin")
-    ]).create();
+    dir(appPath, [
+      appPubspec([]),
+      libDir('foo'),
+      dir("bin")
+    ]).scheduleCreate();
 
     // Create a broken "packages" symlink in "bin".
     scheduleSymlink("nonexistent", path.join(appPath, "bin", "packages"));
@@ -50,14 +50,14 @@ main() {
     schedulePub(args: ['install'],
         output: new RegExp(r"Dependencies installed!$"));
 
-    d.dir(appPath, [
-      d.dir("bin", [
-        d.dir("packages", [
-          d.dir("myapp", [
-            d.file('foo.dart', 'main() => "foo";')
+    dir(appPath, [
+      dir("bin", [
+        dir("packages", [
+          dir("myapp", [
+            file('foo.dart', 'main() => "foo";')
           ])
         ])
       ])
-    ]).validate();
+    ]).scheduleValidate();
   });
 }