Eliminate dependencies on assemblers and code stubs in precompiled runtime.

runtime/vm/locations.cc

 // Copyright (c) 2013, 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.
 
+#if !defined(DART_PRECOMPILED_RUNTIME)
+
 #include "vm/locations.h"
 
 #include "vm/assembler.h"
 #include "vm/il_printer.h"
 #include "vm/log.h"
 #include "vm/stack_frame.h"
 
 namespace dart {
 
 intptr_t RegisterSet::RegisterCount(intptr_t registers) {
@@ skipping 346 matching lines @@
       // with the right representation because register allocator does not know
       // how they are used within the instruction template.
       ASSERT(in(i).IsMachineRegister());
       ASSERT(live_registers()->Contains(in(i)));
     }
   }
 }
 #endif
 
 }  // namespace dart
+
+#endif  // !defined(DART_PRECOMPILED_RUNTIME)