Move i18n extension's date-format C++ code to runtime

src/runtime.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 525 matching lines @@
 
 
 #ifdef V8_I18N_SUPPORT
 #define RUNTIME_FUNCTION_LIST_I18N_SUPPORT(F) \
   /* i18n support */ \
   /* Standalone, helper methods. */ \
   F(CanonicalizeLanguageTag, 1, 1) \
   F(AvailableLocalesOf, 1, 1) \
   F(GetDefaultICULocale, 0, 1) \
   F(GetLanguageTagVariants, 1, 1) \
+  \
+  /* Date format and parse. */ \
+  F(CreateDateTimeFormat, 3, 1) \
+  F(InternalDateFormat, 2, 1) \
+  F(InternalDateParse, 2, 1) \
 
 #else
 #define RUNTIME_FUNCTION_LIST_I18N_SUPPORT(F)
 #endif
 
 
 #ifdef DEBUG
 #define RUNTIME_FUNCTION_LIST_DEBUG(F) \
   /* Testing */ \
   F(ListNatives, 0, 1)
@@ skipping 266 matching lines @@
 //---------------------------------------------------------------------------
 // Constants used by interface to runtime functions.
 
 class DeclareGlobalsEvalFlag:     public BitField<bool,         0, 1> {};
 class DeclareGlobalsNativeFlag:   public BitField<bool,         1, 1> {};
 class DeclareGlobalsLanguageMode: public BitField<LanguageMode, 2, 2> {};
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_H_