[gn] Port test262 archiving to gn

test/test262/BUILD.gn

+# Copyright 2016 the V8 project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("../../gni/isolate.gni")
+
+if (v8_test_isolation_mode != "noop") {

[Michael Achenbach, 2016/06/06 08:32:10]

This ports:
https://cs.chromium.org/chromium/src/v8/test/test262/test262.gyp?l=22

+  action("archive_test262") {
+    visibility = [ ":*" ]
+
+    script = "archive.py"
+
+    inputs = [
+      "list.py",
+    ]
+
+    sources = exec_script("list.py", [], "list lines")
+
+    outputs = [
+      "$target_gen_dir/test262_archiving.stamp",
+    ]
+
+    args = rebase_path(outputs, root_build_dir)
+  }
+}
+
+v8_isolate_run("test262") {
+  deps = [
+    ":archive_test262",
+    "../..:d8_run",
+  ]
+
+  isolate = "test262.isolate"
+}