gn: Add all v8 targets to gn_all

BUILD.gn

 # Copyright (c) 2013 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.
 
 # This is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
@@ skipping 48 matching lines @@
 # over, we can collapse all of these targets as desired.
 
 group("gn_all") {
   testonly = true
 
   deps = [
     ":both_gn_and_gyp",
     ":gn_only",
     ":gn_visibility",
   ]
+
+  if (!is_ios) {
+    deps += [
+      "//v8:gn_all",
+    ]
+  }
 }
 
 # TODO(GYP_GONE): This target exists for compatibility with GYP, specifically
 # for the iOS bots and the official builders.
 group("All") {
   testonly = true
 
   deps = [
     ":gn_all",
   ]
@@ skipping 879 matching lines @@
   assert(target_name != "")  # Mark as used.
   sources = invoker.actual_sources
   assert(
       sources == invoker.actual_sources,
       "Do not use a platform name in your output directory (found \"$root_build_dir\"). http://crbug.com/548283")
 }
 
 assert_valid_out_dir("_unused") {
   actual_sources = [ "$root_build_dir/foo" ]
 }