Create binstubs for executables when activating a package.

sdk/lib/_internal/pub/test/global/binstubs/removes_when_deactivated_test.dart

Index: sdk/lib/_internal/pub/test/global/binstubs/removes_when_deactivated_test.dart
diff --git a/sdk/lib/_internal/pub/test/global/activate/removes_old_lockfile_test.dart b/sdk/lib/_internal/pub/test/global/binstubs/removes_when_deactivated_test.dart
similarity index 50%
copy from sdk/lib/_internal/pub/test/global/activate/removes_old_lockfile_test.dart
copy to sdk/lib/_internal/pub/test/global/binstubs/removes_when_deactivated_test.dart
index 8816bcd63ceb71ee8de9295ea874ad7e7c71fa0c..3a8e149c588a0abb056a3d4091105dfc803f9e82 100644
--- a/sdk/lib/_internal/pub/test/global/activate/removes_old_lockfile_test.dart
+++ b/sdk/lib/_internal/pub/test/global/binstubs/removes_when_deactivated_test.dart
@@ -9,24 +9,28 @@ import '../../test_pub.dart';
 
 main() {
   initConfig();
-  integration('removes the 1.6-style lockfile', () {
+  integration("removes binstubs when the package is deactivated", () {
     servePackages((builder) {
-      builder.serve("foo", "1.0.0");
+      builder.serve("foo", "1.0.0", pubspec: {
+        "executables": {
+          "one": null,
+          "two": null
+        }
+      }, contents: [
+        d.dir("bin", [
+          d.file("one.dart", "main(args) => print('one');"),
+          d.file("two.dart", "main(args) => print('two');")
+        ])
+      ]);
     });
 
-    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"]);
+    schedulePub(args: ["global", "deactivate", "foo"]);
 
     d.dir(cachePath, [
-      d.dir('global_packages', [
-        d.nothing('foo.lock'),
-        d.dir('foo', [d.matcherFile('pubspec.lock', contains('1.0.0'))])
+      d.dir("bin", [
+        d.nothing("one"),
+        d.nothing("two")
       ])
     ]).validate();
   });