Eliminate dependencies on assemblers and code stubs in precompiled runtime.

runtime/vm/disassembler.cc

 // Copyright (c) 2011, 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/disassembler.h"
 
 #include "vm/assembler.h"
 #include "vm/deopt_instructions.h"
 #include "vm/globals.h"
 #include "vm/il_printer.h"
 #include "vm/instructions.h"
 #include "vm/json_stream.h"
 #include "vm/log.h"
 #include "vm/os.h"
@@ skipping 292 matching lines @@
                                    const Code& code,
                                    bool optimized) {
   const char* function_fullname = function.ToFullyQualifiedCString();
   DisassembleCodeHelper(function_fullname, code, optimized);
 }
 
 
 #endif  // !PRODUCT
 
 }  // namespace dart
+
+#endif  // !defined(DART_PRECOMPILED_RUNTIME)