Enables ASAN build and test for Dart

services/BUILD.gn

Index: services/BUILD.gn
diff --git a/services/BUILD.gn b/services/BUILD.gn
index 33c68771319b06b6676923ea97c7001f618f7179..7abd919bf176489c84d28e99b1c64664ec4d546a 100644
--- a/services/BUILD.gn
+++ b/services/BUILD.gn
@@ -9,6 +9,7 @@ group("services") {
   deps = [
     "//services/clipboard",
     "//services/console",
+    "//services/dart",
     "//services/fake_surfaces",
     "//services/gles2:lib",
     "//services/http_server",
@@ -29,10 +30,6 @@ group("services") {
     deps += [ "//services/android:java_handler" ]
   }
 
-  if (!is_asan) {
-    deps += [ "//services/dart" ]
-  }
-
   if (is_linux) {
     deps += [ "//services/python/content_handler" ]
   }