[icu] Support loading data file from default location

test/cctest/cctest.cc

Index: test/cctest/cctest.cc
diff --git a/test/cctest/cctest.cc b/test/cctest/cctest.cc
index 5681f704e15de94662516efabc3c0499bf579989..312001a35b403b3a78388905f5657dee14d39cb5 100644
--- a/test/cctest/cctest.cc
+++ b/test/cctest/cctest.cc
@@ -186,7 +186,7 @@ int main(int argc, char* argv[]) {
     }
   }
 
-  v8::V8::InitializeICU();
+  v8::V8::InitializeICUDefaultLocation(argv[0]);
   v8::Platform* platform = v8::platform::CreateDefaultPlatform();
   v8::V8::InitializePlatform(platform);
   v8::internal::FlagList::SetFlagsFromCommandLine(&argc, argv, true);