Create binstubs for executables when activating a package.

sdk/lib/_internal/pub_generated/test/global/activate/bad_version_test.dart

Index: sdk/lib/_internal/pub_generated/test/global/activate/bad_version_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/global/activate/bad_version_test.dart b/sdk/lib/_internal/pub_generated/test/global/activate/bad_version_test.dart
index 8130c3ff92a454818b09758785ea435b7429f4f4..bdfdeb5efed433bd3f0073dccf79b622a8a9c359 100644
--- a/sdk/lib/_internal/pub_generated/test/global/activate/bad_version_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/global/activate/bad_version_test.dart
@@ -1,17 +1,12 @@
+import 'package:scheduled_test/scheduled_test.dart';
 import '../../../lib/src/exit_codes.dart' as exit_codes;
 import '../../test_pub.dart';
 main() {
   initConfig();
   integration('fails if the version constraint cannot be parsed', () {
-    schedulePub(args: ["global", "activate", "foo", "1.0"], error: """
-            Could not parse version "1.0". Unknown text at "1.0".
-
-            Usage: pub global activate <package...>
-            -h, --help      Print usage information for this command.
-            -s, --source    The source used to find the package.
-                            [git, hosted (default), path]
-
-            Run "pub help" to see global options.
-            """, exitCode: exit_codes.USAGE);
+    schedulePub(
+        args: ["global", "activate", "foo", "1.0"],
+        error: contains('Could not parse version "1.0". Unknown text at "1.0".'),
+        exitCode: exit_codes.USAGE);
   });
 }