Make libraries that depend on //javascript/angular2/testing/catalyst into ng_modules.

Currently you need a dep on something in //third_party/javascript/angular2, so people are forced to insert dummy taze comments.

PiperOrigin-RevId: 257466752

ts_auto_deps/updater/updater.go

diff --git a/ts_auto_deps/updater/updater.go b/ts_auto_deps/updater/updater.go
index 0c52437..55e839e 100644
--- a/ts_auto_deps/updater/updater.go
+++ b/ts_auto_deps/updater/updater.go
@@ -968,7 +968,13 @@
 	for _, li := range edit.AllLists(e) {
 		for _, elem := range li.List {
 			str, ok := elem.(*build.StringExpr)
-			if ok && strings.HasPrefix(str.Value, "//third_party/javascript/angular2") {
+			if !ok {
+				continue
+			}
+			if strings.HasPrefix(str.Value, "//third_party/javascript/angular2") {
+				return true
+			}
+			if str.Value == "//javascript/angular2/testing/catalyst" {
 				return true
 			}
 		}