Devtools: parse variables scopes and sourcemap them

third_party/WebKit/Source/devtools/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.
 
 import("//build/config/features.gni")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
                           [ rebase_path("devtools.gypi") ],
                           "scope",
                           [ "devtools.gypi" ])
 
 # Some of the files in the .gypi use GYP variable expansions, go through and
 # fix them.
 devtools_core_files =
     gypi_values.devtools_core_base_files +
     gypi_values.devtools_bindings_js_files +
     gypi_values.devtools_common_js_files +
     gypi_values.devtools_components_js_files +
     gypi_values.devtools_emulation_js_files +
-    gypi_values.devtools_host_js_files + gypi_values.devtools_main_js_files +
+    gypi_values.devtools_es_tree_js_files + gypi_values.devtools_host_js_files +
+    gypi_values.devtools_main_js_files +
     gypi_values.devtools_platform_js_files + gypi_values.devtools_sdk_js_files +
     gypi_values.devtools_toolbox_bootstrap_js_files +
     gypi_values.devtools_ui_js_files + gypi_values.devtools_workspace_js_files
 
 devtools_extensions_js_files = gypi_values.devtools_extensions_js_files -
                                [ "<@(devtools_extension_api_files)" ] +
                                gypi_values.devtools_extension_api_files
 
 devtools_modules_js_files =
     gypi_values.devtools_accessibility_js_files +
@@ skipping 237 matching lines @@
       resources_out_dir + "accessibility_module.js",
       resources_out_dir + "audits_module.js",
       resources_out_dir + "animation_module.js",
       resources_out_dir + "cm_modes_module.js",
       resources_out_dir + "components_lazy_module.js",
       resources_out_dir + "console_module.js",
       resources_out_dir + "devices_module.js",
       resources_out_dir + "diff_module.js",
       resources_out_dir + "elements_module.js",
       resources_out_dir + "emulated_devices_module.js",
+      resources_out_dir + "es_tree_module.js",
       resources_out_dir + "heap_snapshot_worker_module.js",
       resources_out_dir + "layers_module.js",
       resources_out_dir + "network_module.js",
       resources_out_dir + "profiler_module.js",
       resources_out_dir + "promises_module.js",
       resources_out_dir + "resources_module.js",
       resources_out_dir + "security_module.js",
       resources_out_dir + "screencast_module.js",
       resources_out_dir + "script_formatter_worker_module.js",
       resources_out_dir + "settings_module.js",
@@ skipping 45 matching lines @@
   }
 
   copy("copy_codemirror_files") {
     sources =
         gypi_values.devtools_cm_js_files + gypi_values.devtools_cm_css_files
     outputs = [
       resources_out_dir + "cm/{{source_file_part}}",
     ]
   }
 }