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

src/icu_util.h

 // Copyright 2013 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
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 //
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-"use strict"
 
-function f() {
-  throw new Error("test stack");
-}
+#ifndef V8_ICU_UTIL_H_
+#define V8_ICU_UTIL_H_
 
-var error_stack = "";
-try {
-  f.call(null);
-} catch (e) {
-  error_stack = e.stack;
-}
+namespace v8 {
 
-assertTrue(error_stack.indexOf("test stack") > 0);
-assertTrue(error_stack.indexOf("illegal") < 0);
+// Call this function to load ICU's data tables for the current process.  This
+// function should be called before ICU is used.
+bool InitializeICU();
 
+}  // namespace v8
+
+#endif  // V8_ICU_UTIL_H_