Eliminate dependencies on assemblers and code stubs in precompiled runtime.

runtime/vm/cha.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.
 
+#if !defined(DART_PRECOMPILED_RUNTIME)
+
 #include "vm/cha.h"
 #include "vm/class_table.h"
 #include "vm/flags.h"
 #include "vm/freelist.h"
 #include "vm/object.h"
 #include "vm/raw_object.h"
 #include "vm/visitor.h"
 
 namespace dart {
 
@@ skipping 160 matching lines @@
 
 
 void CHA::RegisterDependencies(const Code& code) const {
   for (intptr_t i = 0; i < guarded_classes_.length(); ++i) {
     guarded_classes_[i].cls->RegisterCHACode(code);
   }
 }
 
 
 }  // namespace dart
+
+#endif  // !defined(DART_PRECOMPILED_RUNTIME)