Supress generating dfe snapshot on Windows.

BUILD.gn

 # Copyright (c) 2016, 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.
 
 # This target will be built if no target is specified when invoking ninja.
 group("default") {
   if (defined(is_fuchsia) && (is_fuchsia || is_fuchsia_host)) {
     # Fuchsia has run_vm_tests marked testonly.
     testonly = true
   }
@@ skipping 24 matching lines @@
     testonly = true
   }
   deps = [
     "runtime/bin:dart",
     "runtime/bin:dart_bootstrap($host_toolchain)",
     "runtime/bin:process_test",
     "runtime/bin:run_vm_tests",
     "runtime/bin:sample_extension",
     "runtime/bin:test_extension",
     "runtime/vm:patched_sdk",
+  ]
 
-    # TODO(rmacnak): Link this into 'dart'
-    "utils/kernel-service:kernel-service",
-  ]
+  # TODO(28532): Enable on Windows.
+  # TODO(rmacnak): Link this into 'dart'
+  if (target_os != "windows") {
+    deps += [ "utils/kernel-service:kernel-service" ]
+  }
 }
 
 group("runtime_precompiled") {
   deps = [
     "runtime/bin:dart_bootstrap($host_toolchain)",
     "runtime/bin:dart_precompiled_runtime",
     "runtime/bin:process_test",
     "runtime/vm:patched_sdk",
   ]
 }
@@ skipping 180 matching lines @@
         rebase_path(input),
         "--output-file",
         rebase_path(output),
         "--build-id-map",
         rebase_path("$target_gen_dir/build_id_map"),
         "--compress",
       ]
     }
   }
 }