Re-enable the inspector tests

sky/framework/inspector/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.
+
+group("inspector") {
+  testonly = true
+
+  deps = [
+    "//sky/framework/inspector/server",
+    ":inspector_files",
+  ]
+}
+
+copy("inspector_files") {
+  sources = [
+    "console-agent.sky",
+    "dom-agent.sky",
+    "inspector.sky",
+    "page-agent.sky",
+    "worker-agent.sky",
+  ]
+
+  outputs = [ "$target_gen_dir/{{source_file_part}}" ]
+}