Make pub's binstubs resilient to changes in snapshot format.

sdk/lib/_internal/pub_generated/test/global/binstubs/outdated_snapshot_test.dart

Index: sdk/lib/_internal/pub_generated/test/global/binstubs/outdated_snapshot_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/global/run/recompiles_if_sdk_is_out_of_date_test.dart b/sdk/lib/_internal/pub_generated/test/global/binstubs/outdated_snapshot_test.dart
similarity index 50%
copy from sdk/lib/_internal/pub_generated/test/global/run/recompiles_if_sdk_is_out_of_date_test.dart
copy to sdk/lib/_internal/pub_generated/test/global/binstubs/outdated_snapshot_test.dart
index 1579ed58c5c35fde435eea28fc0894c92e11f045..b02b4530b9fdcb050f63968775da3a8f9631d17e 100644
--- a/sdk/lib/_internal/pub_generated/test/global/run/recompiles_if_sdk_is_out_of_date_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/global/binstubs/outdated_snapshot_test.dart
@@ -2,21 +2,28 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+import 'dart:io';
+
+import 'package:path/path.dart' as p;
+import 'package:scheduled_test/scheduled_process.dart';
 import 'package:scheduled_test/scheduled_stream.dart';
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
+import 'utils.dart';
 
 main() {
   initConfig();
-  integration('recompiles a script if the SDK version is out-of-date', () {
+  integration("a binstub runs 'pub global run' for an outdated snapshot", () {
     servePackages((builder) {
-      builder.serve(
-          "foo",
-          "1.0.0",
+      builder.serve("foo", "1.0.0", pubspec: {
+        "executables": {
+          "foo-script": "script"
+        }
+      },
           contents: [
-              d.dir("bin", [d.file("script.dart", "main(args) => print('ok');")])]);
+              d.dir("bin", [d.file("script.dart", "main(args) => print('ok \$args');")])]);
     });
 
     schedulePub(args: ["global", "activate", "foo"]);
@@ -31,24 +38,13 @@ main() {
                         'foo',
                         [d.dir('bin', [d.outOfDateSnapshot('script.dart.snapshot')])])])]).create();
 
-    var pub = pubRun(global: true, args: ["foo:script"]);
-    // In the real world this would just print "hello!", but since we collect
-    // all output we see the precompilation messages as well.
-    pub.stdout.expect("Precompiling executables...");
-    pub.stdout.expect(consumeThrough("ok"));
-    pub.shouldExit();
+    var process = new ScheduledProcess.start(
+        p.join(sandboxDir, cachePath, "bin", binStubName("foo-script")),
+        ["arg1", "arg2"],
+        environment: getEnvironment());
 
-    d.dir(
-        cachePath,
-        [
-            d.dir(
-                'global_packages',
-                [
-                    d.dir(
-                        'foo',
-                        [
-                            d.dir(
-                                'bin',
-                                [d.matcherFile('script.dart.snapshot', contains('ok'))])])])]).validate();
+    // process.stderr.expect(startsWith("Wrong script snapshot version"));
+    // process.stdout.expect(consumeThrough("ok [arg1, arg2]"));
+    process.shouldExit();
   });
 }