Fix build.

runtime/vm/code_generator_x64.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/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/code_generator.h"
 
 #include "lib/error.h"
@@ skipping 525 matching lines @@
   const Immediate raw_null =
       Immediate(reinterpret_cast<intptr_t>(Object::null()));
   const Function& function = parsed_function_.function();
 
   // 1. Compute the frame size and enter the frame (reserving local space
   // for copied incoming and default arguments and stack-allocated local
   // variables).
   //
   // TODO(regis): We may give up reserving space on stack for args/locals
   // because pushes of initial values may be more effective than moves.
-  LocalScope* scope = parsed_function_.node_sequence()->scope();
   const int num_fixed_params = function.num_fixed_parameters();
   const int num_opt_params = function.num_optional_parameters();
   const int num_copied_params = parsed_function_.copied_parameter_count();
   const int stack_slot_count =
       num_copied_params + parsed_function_.stack_local_count();
   set_locals_space_size(stack_slot_count * kWordSize);
   __ EnterFrame(locals_space_size());
 
   // 2. Optionally check if the number of arguments matches.  We check the
   // number of passed arguments when we have to copy them due to the
@@ skipping 2105 matching lines @@
   const Error& error = Error::Handle(
       Parser::FormatError(script, token_index, "Error", format, args));
   va_end(args);
   Isolate::Current()->long_jump_base()->Jump(1, error);
   UNREACHABLE();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64