Add DISALLOW_COPY_AND_ASSIGN to subclasses of ValueObject and make ValueObject copyable.

runtime/vm/flow_graph_compiler.h

 // 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.
 
 #ifndef VM_FLOW_GRAPH_COMPILER_H_
 #define VM_FLOW_GRAPH_COMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/assembler_macros.h"
@@ skipping 42 matching lines @@
   // be handled by a single instruction.
   void MoveMemoryToMemory(const Address& dst, const Address& src);
   void StoreObject(const Address& dst, const Object& obj);
   void Exchange(Register reg, const Address& mem);
   void Exchange(const Address& mem1, const Address& mem2);
 
   FlowGraphCompiler* compiler_;
 
   // List of moves not yet resolved.
   GrowableArray<MoveOperands*> moves_;
+
+  DISALLOW_COPY_AND_ASSIGN(ParallelMoveResolver);
 };
 
 
 // Used for describing a deoptimization point after call (lazy deoptimization).
 // For deoptimization before instruction use class CompilerDeoptInfoWithStub.
 class CompilerDeoptInfo : public ZoneAllocated {
  public:
   CompilerDeoptInfo(intptr_t deopt_id, DeoptReasonId reason)
       : pc_offset_(-1),
         deopt_id_(deopt_id),
@@ skipping 445 matching lines @@
   // that should be used when deoptimizing we store it in this variable.
   // In future AddDeoptStub should be moved out of the instruction template.
   Environment* pending_deoptimization_env_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_H_