message: Fix the gtest target for the move of ArchSpecTest.cpp from Core to Utility.
  <rdar://problem/35562389>
diff: 2321F9421BDD343A00BA9A93 /* Utility */ = {
  isa = PBXGroup;
  children = (
  + 23E2E5161D903689006F38BB /* ArchSpecTest.cpp */,
  9A3D43C81F3150D200EB767C /* ConstStringTest.cpp */,
  9A3D43C71F3150D200EB767C /* LogTest.cpp */,
  9A3D43CB1F3150D200EB767C /* NameMatchesTest.cpp */,
  9A3D43E31F3237D500EB767C /* ListenerTest.cpp */,
  9A3D43E21F3237D500EB767C /* StateTest.cpp */,
  9A3D43E11F3237D500EB767C /* StreamCallbackTest.cpp */,
  - 23E2E5161D903689006F38BB /* ArchSpecTest.cpp */,
  23CB14E71D66CC0E00EDDDE1 /* CMakeLists.txt */,
  23CB14E61D66CC0E00EDDDE1 /* BroadcasterTest.cpp */,
  23CB14E81D66CC0E00EDDDE1 /* DataExtractorTest.cpp */,
  