Support Git in pub global activate.

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

Index: sdk/lib/_internal/pub/test/global/run/runs_git_script_test.dart
diff --git a/sdk/lib/_internal/pub/test/global/run/runs_path_script_test.dart b/sdk/lib/_internal/pub/test/global/run/runs_git_script_test.dart
similarity index 77%
copy from sdk/lib/_internal/pub/test/global/run/runs_path_script_test.dart
copy to sdk/lib/_internal/pub/test/global/run/runs_git_script_test.dart
index b8d9b2c2645215fb066761c0f5aa50988deb0542..f9c1c5c50a1b650bd9b6efe5d217deaacfb0a870 100644
--- a/sdk/lib/_internal/pub/test/global/run/runs_path_script_test.dart
+++ b/sdk/lib/_internal/pub/test/global/run/runs_git_script_test.dart
@@ -7,15 +7,17 @@ import '../../test_pub.dart';
 
 main() {
   initConfig();
-  integration('runs a script in a path package', () {
-    d.dir("foo", [
+  integration('runs a script in a git package', () {
+    ensureGit();
+
+    d.git('foo.git', [
       d.libPubspec("foo", "1.0.0"),
       d.dir("bin", [
         d.file("foo.dart", "main() => print('ok');")
       ])
     ]).create();
 
-    schedulePub(args: ["global", "activate", "--source", "path", "../foo"]);
+    schedulePub(args: ["global", "activate", "-sgit", "../foo.git"]);
 
     var pub = pubRun(global: true, args: ["foo"]);
     pub.stdout.expect("ok");