Precompile immutable globally-installed pub executables.

sdk/lib/_internal/pub/test/global/activate/snapshots_git_executables_test.dart

Index: sdk/lib/_internal/pub/test/global/activate/snapshots_git_executables_test.dart
diff --git a/sdk/lib/_internal/pub/test/global/activate/snapshots_git_executables_test.dart b/sdk/lib/_internal/pub/test/global/activate/snapshots_git_executables_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..35274c14f8e328188d1fc5662e1107ecdcc6ed49
--- /dev/null
+++ b/sdk/lib/_internal/pub/test/global/activate/snapshots_git_executables_test.dart
@@ -0,0 +1,48 @@
+// 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_test.dart';
+
+import '../../descriptor.dart' as d;
+import '../../test_pub.dart';
+
+main() {
+  initConfig();
+  integration('snapshots the executables for a Git repo', () {
+    ensureGit();
+
+    d.git('foo.git', [
+      d.libPubspec("foo", "1.0.0"),
+      d.dir("bin", [
+        d.file("hello.dart", "void main() => print('hello!');"),
+        d.file("goodbye.dart", "void main() => print('goodbye!');"),
+        d.file("shell.sh", "echo shell"),
+        d.dir("subdir", [
+          d.file("sub.dart", "void main() => print('sub!');")
+        ])
+      ])
+    ]).create();
+
+    schedulePub(args: ["global", "activate", "-sgit", "../foo.git"],
+        output: allOf([
+      contains('Precompiled foo:hello.'),
+      contains("Precompiled foo:goodbye.")
+    ]));
+
+    d.dir(cachePath, [
+      d.dir('global_packages', [
+        d.dir('foo', [
+          d.matcherFile('pubspec.lock', contains('1.0.0')),
+          d.dir('bin', [
+            d.file('sdk-version', '0.1.2+3\n'),
+            d.matcherFile('hello.dart.snapshot', contains('hello!')),
+            d.matcherFile('goodbye.dart.snapshot', contains('goodbye!')),
+            d.nothing('shell.sh.snapshot'),
+            d.nothing('subdir')
+          ])
+        ])
+      ])
+    ]).validate();
+  });
+}