Precompile immutable globally-installed pub executables.

sdk/lib/_internal/pub/test/global/run/recompiles_if_sdk_is_out_of_date_test.dart

Index: sdk/lib/_internal/pub/test/global/run/recompiles_if_sdk_is_out_of_date_test.dart
diff --git a/sdk/lib/_internal/pub/test/global/run/recompiles_if_sdk_is_out_of_date_test.dart b/sdk/lib/_internal/pub/test/global/run/recompiles_if_sdk_is_out_of_date_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..df4b029704db3ab19fbd05e5899dff7619c17c52
--- /dev/null
+++ b/sdk/lib/_internal/pub/test/global/run/recompiles_if_sdk_is_out_of_date_test.dart
@@ -0,0 +1,53 @@
+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// 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 'package:scheduled_test/scheduled_stream.dart';
+import 'package:scheduled_test/scheduled_test.dart';
+
+import '../../descriptor.dart' as d;
+import '../../test_pub.dart';
+
+main() {
+  initConfig();
+  integration('recompiles a script if the SDK version is out-of-date', () {
+    servePackages((builder) {
+      builder.serve("foo", "1.0.0", contents: [
+        d.dir("bin", [
+          d.file("script.dart", "main(args) => print('ok');")
+        ])
+      ]);
+    });
+
+    schedulePub(args: ["global", "activate", "foo"]);
+
+    d.dir(cachePath, [
+      d.dir('global_packages', [
+        d.dir('foo', [
+          d.dir('bin', [
+            d.file('sdk-version', '0.0.1\n'),
+            d.file('script.dart.snapshot', 'junk')
+          ])
+        ])
+      ])
+    ]).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();
+
+    d.dir(cachePath, [
+      d.dir('global_packages', [
+        d.dir('foo', [
+          d.dir('bin', [
+            d.file('sdk-version', '0.1.2+3\n'),
+            d.matcherFile('script.dart.snapshot', contains('ok'))
+          ])
+        ])
+      ])
+    ]).validate();
+  });
+}