[icu] Support loading data file from default location

test/cctest/interpreter/generate-bytecode-expectations.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cstring>
 #include <fstream>
 #include <vector>
 
 #include "test/cctest/interpreter/bytecode-expectations-printer.h"
 
@@ skipping 340 matching lines @@
 
   stream << "\n\n";
 }
 
 V8InitializationScope::V8InitializationScope(const char* exec_path)
     : platform_(v8::platform::CreateDefaultPlatform()) {
   i::FLAG_ignition = true;
   i::FLAG_always_opt = false;
   i::FLAG_allow_natives_syntax = true;
 
-  v8::V8::InitializeICU();
+  v8::V8::InitializeICUDefaultLocation(exec_path);
   v8::V8::InitializeExternalStartupData(exec_path);
   v8::V8::InitializePlatform(platform_.get());
   v8::V8::Initialize();
 
   ArrayBufferAllocator allocator;
   v8::Isolate::CreateParams create_params;
   create_params.array_buffer_allocator = &allocator;
 
   isolate_ = v8::Isolate::New(create_params);
 }
@@ skipping 203 matching lines @@
     }
   }
 
   if (!options.rebaseline()) {
     if (!WriteExpectationsFile(snippet_list, platform, options,
                                options.output_filename())) {
       return 3;
     }
   }
 }