Import the v8-i18n extension into v8

Makefile

 # 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 98 matching lines @@
   TESTFLAGS += --no-presubmit
 endif
 # strictaliasing=off (workaround for GCC-4.5)
 ifeq ($(strictaliasing), off)
   GYPFLAGS += -Dv8_no_strict_aliasing=1
 endif
 # regexp=interpreted
 ifeq ($(regexp), interpreted)
   GYPFLAGS += -Dv8_interpreted_regexp=1
 endif
+# i18nsupport=on
+ifeq ($(i18nsupport), on)
+  GYPFLAGS += -Dv8_enable_i18n_support=1
+endif
 # arm specific flags.
 # armv7=false/true
 ifeq ($(armv7), false)
   GYPFLAGS += -Darmv7=0
 else
 ifeq ($(armv7), true)
   GYPFLAGS += -Darmv7=1
 endif
 endif
 # vfp2=off. Deprecated, use armfpu=
@@ skipping 259 matching lines @@
             echo "CXX=$(CXX)" >> $(ENVFILE).new
 
 # Dependencies.
 # Remember to keep these in sync with the DEPS file.
 dependencies:
         svn checkout --force http://gyp.googlecode.com/svn/trunk build/gyp \
             --revision 1656
         svn checkout --force \
             https://src.chromium.org/chrome/trunk/deps/third_party/icu46 \
             third_party/icu --revision 205936