Fix 64-bit build

runtime/vm/code_patcher_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/assembler.h"
 #include "vm/code_patcher.h"
 #include "vm/cpu.h"
@@ skipping 103 matching lines @@
         reinterpret_cast<uint8_t*>(return_address - kCallPatternSize);
     return (code_bytes[0] == 0x41) && (code_bytes[1] == 0xFF) &&
            (code_bytes[2] == 0x97);
   }
 
   intptr_t pp_index() const {
     return InstructionPattern::IndexFromPPLoad(start_ + 3);
   }
 
   uword Target() const {
-    return reinterpret_cast<uword>(object_pool_.RawValueAt(pp_index()));
+    return object_pool_.RawValueAt(pp_index());
   }
 
   void SetTarget(uword target) const {
     object_pool_.SetRawValueAt(pp_index(), target);
     // No need to flush the instruction cache, since the code is not modified.
   }
 
  protected:
   uword start_;
   const ObjectPool& object_pool_;
@@ skipping 103 matching lines @@
 
 RawObject* CodePatcher::GetEdgeCounterAt(uword pc, const Code& code) {
   ASSERT(code.ContainsInstructionAt(pc));
   EdgeCounter counter(pc, code);
   return counter.edge_counter();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64