Fix native lookup.

runtime/vm/bootstrap_natives.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/bootstrap.h"
 
 #include "include/dart_api.h"
 
 #include "vm/bootstrap_natives.h"
 #include "vm/dart_api_impl.h"
@@ skipping 23 matching lines @@
                                              int argument_count) {
   const Object& obj = Object::Handle(Api::UnwrapHandle(name));
   if (!obj.IsString()) {
     return NULL;
   }
   const char* function_name = obj.ToCString();
   ASSERT(function_name != NULL);
   int num_entries = sizeof(BootStrapEntries) / sizeof(struct NativeEntries);
   for (int i = 0; i < num_entries; i++) {
     struct NativeEntries* entry = &(BootStrapEntries[i]);
-    if (!strncmp(function_name, entry->name_, strlen(entry->name_)) &&
+    if ((strcmp(function_name, entry->name_) == 0) &&
         (entry->argument_count_ == argument_count)) {
       return reinterpret_cast<Dart_NativeFunction>(entry->function_);
     }
   }
   return NULL;
 }
 
 
 void Bootstrap::SetupNativeResolver() {
   Library& library = Library::Handle();
@@ skipping 20 matching lines @@
   library = Library::IsolateLibrary();
   ASSERT(!library.IsNull());
   library.set_native_entry_resolver(resolver);
 
   library = Library::ScalarlistLibrary();
   ASSERT(!library.IsNull());
   library.set_native_entry_resolver(resolver);
 }
 
 }  // namespace dart