Fix Unicode string normalization with null bytes

src/runtime/runtime-i18n.cc

 // Copyright 2014 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.
 
 
 #ifdef V8_I18N_SUPPORT
 #include "src/runtime/runtime-utils.h"
 
 #include "src/api.h"
 #include "src/api-natives.h"
@@ skipping 568 matching lines @@
   CONVERT_ARG_HANDLE_CHECKED(String, stringValue, 0);
   CONVERT_NUMBER_CHECKED(int, form_id, Int32, args[1]);
   RUNTIME_ASSERT(form_id >= 0 &&
                  static_cast<size_t>(form_id) < arraysize(normalizationForms));
 
   v8::String::Value string_value(v8::Utils::ToLocal(stringValue));
   const UChar* u_value = reinterpret_cast<const UChar*>(*string_value);
 
   // TODO(mnita): check Normalizer2 (not available in ICU 46)
   UErrorCode status = U_ZERO_ERROR;
+  icu::UnicodeString input(false, u_value, string_value.length());
   icu::UnicodeString result;
-  icu::Normalizer::normalize(u_value, normalizationForms[form_id], 0, result,
+  icu::Normalizer::normalize(input, normalizationForms[form_id], 0, result,
                              status);
   if (U_FAILURE(status)) {
     return isolate->heap()->undefined_value();
   }
 
   Handle<String> result_str;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result_str,
       isolate->factory()->NewStringFromTwoByte(Vector<const uint16_t>(
           reinterpret_cast<const uint16_t*>(result.getBuffer()),
@@ skipping 144 matching lines @@
   } else if (status >= UBRK_WORD_IDEO && status < UBRK_WORD_IDEO_LIMIT) {
     return *isolate->factory()->NewStringFromStaticChars("ideo");
   } else {
     return *isolate->factory()->NewStringFromStaticChars("unknown");
   }
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_I18N_SUPPORT