[GN] Add Core{Foundation,Services}.framework to libs in Mac build

runtime/bin/BUILD.gn

 # Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 
 declare_args() {
   dart_io_support = false
 
   # TODO(zra, jamesr): Remove this check once we start building boringssl for
   # the fuchsia port.
@@ skipping 237 matching lines @@
     # Include generated source files.
     "$target_gen_dir/builtin_gen.cc",
     "$target_gen_dir/io_gen.cc",
     "$target_gen_dir/io_patch_gen.cc",
     "$target_gen_dir/resources_gen.cc",
   ]
 
   include_dirs = [
     "..",
   ]
+
+  if (is_mac) {
+    libs = [
+      "CoreFoundation.framework",
+      "CoreServices.framework"
+    ]
+  }
 }
 
 # A source set for the implementation of 'dart:io' library
 # (without secure sockets) suitable for linking with gen_snapshot.
 source_set("gen_snapshot_dart_io") {
   configs += ["..:dart_config",
               "..:dart_product_config",
               "..:dart_precompiler_config"]
 
   deps = [
@@ skipping 315 matching lines @@
 
   executable("run_vm_tests_fuchsia") {
     testonly = true
     configs += ["..:dart_config"]
     sources = [
       "run_vm_tests_fuchsia.cc"
     ]
     libs = [ "launchpad" ]
   }
 }  # defined(is_fuchsia) && is_fuchsia