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

src/icu_util.cc

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-#ifndef V8_HYDROGEN_DCE_H_
-#define V8_HYDROGEN_DCE_H_
+#include "icu_util.h"
 
-#include "hydrogen.h"
+#if defined(_WIN32)
+#include <windows.h>
+
+#include "unicode/putil.h"
+#include "unicode/udata.h"
+
+#define ICU_UTIL_DATA_SYMBOL "icudt" U_ICU_VERSION_SHORT "_dat"
+#define ICU_UTIL_DATA_SHARED_MODULE_NAME "icudt.dll"
+#endif
 
 namespace v8 {
-namespace internal {
 
+bool InitializeICU() {
+#if defined(_WIN32)
+  // We expect to find the ICU data module alongside the current module.
+  HMODULE module = LoadLibraryA(ICU_UTIL_DATA_SHARED_MODULE_NAME);
+  if (!module)

[Jakob Kummerow, 2013/07/09 12:24:41]

nit: V8 style prefers to either have the then-clause on the same line (i.e. "if
(!module) return false;") or use {}.
Again below.

+    return false;
 
-class HDeadCodeEliminationPhase : public HPhase {
- public:
-  explicit HDeadCodeEliminationPhase(HGraph* graph)
-      : HPhase("H_Dead code elimination", graph) { }
+  FARPROC addr = GetProcAddress(module, ICU_UTIL_DATA_SYMBOL);
+  if (!addr)
+    return false;
 
-  void Run() {
-    MarkLiveInstructions();
-    RemoveDeadInstructions();
-  }
+  UErrorCode err = U_ZERO_ERROR;
+  udata_setCommonData(reinterpret_cast<void*>(addr), &err);
+  return err == U_ZERO_ERROR;
+#else
+  // Mac/Linux bundle the ICU data in.
+  return true;
+#endif
+}
 
- private:
-  bool MarkLive(HValue* ref, HValue* instr);
-  void MarkLiveInstructions();
-  void RemoveDeadInstructions();
-};
-
-
-} }  // namespace v8::internal
-
-#endif  // V8_HYDROGEN_DCE_H_
+}  // namespace v8