Move type converter unittests to separate binary

mojo/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/module_args/mojo.gni")
 import("//mojo/public/mojo.gni")
 import("//testing/test.gni")
 
 declare_args() {
   mojo_use_go = false
@@ skipping 45 matching lines @@
       "//mojo/nacl/nonsfi:mojo_nacl_tests_nonsfi",
     ]
   }
 }
 
 group("tests") {
   testonly = true
   deps = [
     ":public_tests",
     "//mojo/common:mojo_common_unittests",
+    "//mojo/converters:mojo_converters_unittests",
     "//mojo/dart/embedder/test:dart_unittests",
     "//mojo/edk:tests",
     "//mojo/gles2:mgl_unittests",
     "//mojo/gpu:apptests",
     "//mojo/public/cpp/bindings/tests:versioning_apptests",
     "//mojo/services/files/c:apptests",
     "//mojo/services/files/cpp:files_impl_apptests",
     "//mojo/services/view_manager/cpp/tests:mojo_view_manager_lib_unittests",
     "//mojo/tools:message_generator",
   ]
@@ skipping 82 matching lines @@
     "//mojo/public/cpp/utility/tests",
   ]
 }
 
 test("mojo_system_impl_private_unittests") {
   deps = [
     "//mojo/edk/test:run_all_unittests",
     "//mojo/public/platform/native:system_impl_private_tests",
   ]
 }