Initialize ICU data files in d8 and disable i18n for other code samples

src/d8.gyp

Index: src/d8.gyp
diff --git a/src/d8.gyp b/src/d8.gyp
index 47a7cc01187b00203b4881c826e7a3a1a85aa042..40d2f14daba21c9d80416bd4c843a57386fa126f 100644
--- a/src/d8.gyp
+++ b/src/d8.gyp
@@ -31,6 +31,7 @@
     'console%': '',
     # Enable support for Intel VTune. Supported on ia32/x64 only
     'v8_enable_vtunejit%': 0,
+    'v8_enable_i18n_support%': 0,
   },
   'includes': ['../build/common.gypi'],
   'targets': [
@@ -78,6 +79,15 @@
             '../src/third_party/vtune/v8vtune.gyp:v8_vtune',
           ],
         }],
+        ['v8_enable_i18n_support==1', {
+          'sources': [
+            'icu_util.cc',
+            'icu_util.h',
+          ],
+          'dependencies': [
+            '<(DEPTH)/third_party/icu/icu.gyp:*',
+          ],
+        }],
       ],
     },
     {