Allow the native resolver to setup whether it needs the Dart API scope to

runtime/bin/builtin_gen_snapshot.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 <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 
 #include "include/dart_api.h"
 
@@ skipping 11 matching lines @@
 static struct NativeEntries {
   const char* name_;
   Dart_NativeFunction function_;
   int argument_count_;
 } BuiltinEntries[] = {
   BUILTIN_NATIVE_LIST(REGISTER_FUNCTION)
 };
 
 
 Dart_NativeFunction Builtin::NativeLookup(Dart_Handle name,
-                                          int argument_count) {
+                                          int argument_count,
+                                          bool* auto_setup_scope) {
   const char* function_name = NULL;
   Dart_Handle result = Dart_StringToCString(name, &function_name);
   DART_CHECK_VALID(result);
   ASSERT(function_name != NULL);
+  ASSERT(auto_setup_scope != NULL);
+  *auto_setup_scope = true;
   int num_entries = sizeof(BuiltinEntries) / sizeof(struct NativeEntries);
   for (int i = 0; i < num_entries; i++) {
     struct NativeEntries* entry = &(BuiltinEntries[i]);
     if (!strcmp(function_name, entry->name_) &&
         (entry->argument_count_ == argument_count)) {
       return reinterpret_cast<Dart_NativeFunction>(entry->function_);
     }
   }
   return NULL;
 }
@@ skipping 16 matching lines @@
   } else {
     fwrite(chars, sizeof(*chars), length, stdout);
   }
   fputc('\n', stdout);
   fflush(stdout);
   Dart_ExitScope();
 }
 
 }  // namespace bin
 }  // namespace dart