[foozzie] Add correctness fuzzer resources to build output

This adds the correctness fuzzer harness files to the output
directory guarded by a gn arg.

The switch will be turned on on the builder uploading builds to
clusterfuzz.

BUG=chromium:673246
NOTRY=true
TBR=tandrii@chromium.org,jochen@chromium.org

Review-Url: https://codereview.chromium.org/2623843002
Cr-Commit-Position: refs/heads/master@{#42166}

BUILD.gn

@@ -2580,6 +2580,10 @@ v8_executable("d8") {
     deps += [ "//third_party/icu" ]
   }
 
+  if (v8_correctness_fuzzer) {
+    deps += [ "tools/foozzie:v8_correctness_fuzzer_resources" ]
+  }
+
   defines = []
   if (v8_enable_inspector) {
     defines += [ "V8_INSPECTOR_ENABLED" ]

gni/v8.gni

@@ -7,6 +7,9 @@ import("//build/config/v8_target_cpu.gni")
 import("//build_overrides/v8.gni")
 
 declare_args() {
+  # Includes files needed for correctness fuzzing.
+  v8_correctness_fuzzer = false
+
   # Indicate if valgrind was fetched as a custom deps to make it available on
   # swarming.
   v8_has_valgrind = false

tools/foozzie/BUILD.gn

+# Copyright 2017 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/v8.gni")
+
+if (v8_correctness_fuzzer) {
+  copy("v8_correctness_fuzzer_resources") {
+    sources = [
+      "v8_commands.py",
+      "v8_foozzie.py",
+      "v8_mock.js",
+      "v8_suppressions.js",
+      "v8_suppressions.py",
+    ]
+    outputs = [ "$root_out_dir/{{source_file_part}}" ]
+  }
+}