Precompile immutable globally-installed pub executables.

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

Index: sdk/lib/_internal/pub/test/global/activate/removes_old_lockfile_test.dart
diff --git a/sdk/lib/_internal/pub/test/global/activate/cached_package_test.dart b/sdk/lib/_internal/pub/test/global/activate/removes_old_lockfile_test.dart
similarity index 56%
copy from sdk/lib/_internal/pub/test/global/activate/cached_package_test.dart
copy to sdk/lib/_internal/pub/test/global/activate/removes_old_lockfile_test.dart
index 348e7677ae4b6e9f5a0aa4168f000d86b61beef9..8816bcd63ceb71ee8de9295ea874ad7e7c71fa0c 100644
--- a/sdk/lib/_internal/pub/test/global/activate/cached_package_test.dart
+++ b/sdk/lib/_internal/pub/test/global/activate/removes_old_lockfile_test.dart
@@ -9,22 +9,24 @@ import '../../test_pub.dart';
 
 main() {
   initConfig();
-  integration('can activate an already cached package', () {
+  integration('removes the 1.6-style lockfile', () {
     servePackages((builder) {
       builder.serve("foo", "1.0.0");
     });
 
-    schedulePub(args: ["cache", "add", "foo"]);
+    d.dir(cachePath, [
+      d.dir('global_packages', [
+        d.file('foo.lock', 'packages: {foo: {description: foo, source: hosted, '
+            'version: "1.0.0"}}}')
+      ])
+    ]).create();
 
-    schedulePub(args: ["global", "activate", "foo"], output: """
-        Resolving dependencies...
-        + foo 1.0.0
-        Activated foo 1.0.0.""");
+    schedulePub(args: ["global", "activate", "foo"]);
 
-    // Should be in global package cache.
     d.dir(cachePath, [
       d.dir('global_packages', [
-        d.matcherFile('foo.lock', contains('1.0.0'))
+        d.nothing('foo.lock'),
+        d.dir('foo', [d.matcherFile('pubspec.lock', contains('1.0.0'))])
       ])
     ]).validate();
   });