IDL: Add build target for IDL dictionary impl generation in core

Source/core/core.gyp

Index: Source/core/core.gyp
diff --git a/Source/core/core.gyp b/Source/core/core.gyp
index ffdce5948eab35e8f69bf0827844f64e8a1f1188..66ae46d28c316dfe62cbd9e8562cbbfb2a3dc087 100644
--- a/Source/core/core.gyp
+++ b/Source/core/core.gyp
@@ -278,6 +278,9 @@
         # Generated from make_style_builder.py
         '<(blink_core_output_dir)/StyleBuilder.cpp',
         '<(blink_core_output_dir)/StyleBuilderFunctions.cpp',
+
+        # IDL dictionary impl files generated by IDL compiler
+        # FIXME: Add '<@(generated_core_dictionary_files)',
       ],
       'conditions': [
         ['OS=="win" and component=="shared_library"', {
@@ -738,6 +741,7 @@
       'dependencies': [
         '../config.gyp:config',
         'webcore',
+        'webcore_generated',
       ],
       'defines': [
         'BLINK_IMPLEMENTATION=1',
@@ -751,6 +755,8 @@
       'sources': [
         # Note: file list duplicated in GN build.
         '<@(webcore_testing_files)',
+        '<(bindings_core_v8_output_dir)/V8DictionaryTest.cpp',
+        '<(bindings_core_v8_output_dir)/V8DictionaryTest.h',
         '<(bindings_core_v8_output_dir)/V8GarbageCollectedScriptWrappable.cpp',
         '<(bindings_core_v8_output_dir)/V8GarbageCollectedScriptWrappable.h',
         '<(bindings_core_v8_output_dir)/V8GCObservation.cpp',
@@ -775,6 +781,8 @@
         '<(bindings_core_v8_output_dir)/V8LayerRectList.h',
         '<(bindings_core_v8_output_dir)/V8RefCountedScriptWrappable.cpp',
         '<(bindings_core_v8_output_dir)/V8RefCountedScriptWrappable.h',
+        '<(bindings_core_v8_output_dir)/V8TestingDictionary.cpp',
+        '<(bindings_core_v8_output_dir)/V8TestingDictionary.h',
       ],
       'sources/': [
         ['exclude', 'testing/js'],