Add DISALLOW_COPY_AND_ASSIGN to subclasses of ValueObject and make ValueObject copyable.

runtime/vm/flow_graph_inliner.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.
 
 #include "vm/flow_graph_inliner.h"
 
 #include "vm/compiler.h"
 #include "vm/flags.h"
 #include "vm/flow_graph.h"
 #include "vm/flow_graph_builder.h"
@@ skipping 156 matching lines @@
       }
     }
   }
 
   intptr_t call_site_count() const { return call_site_count_; }
   intptr_t instruction_count() const { return instruction_count_; }
 
  private:
   intptr_t call_site_count_;
   intptr_t instruction_count_;
+
+  DISALLOW_COPY_AND_ASSIGN(GraphInfoCollector);
 };
 
 
 // A collection of call sites to consider for inlining.
 class CallSites : public FlowGraphVisitor {
  public:
   explicit CallSites(FlowGraph* flow_graph)
       : FlowGraphVisitor(flow_graph->postorder()),  // We don't use this order.
         static_calls_(),
         closure_calls_(),
@@ skipping 682 matching lines @@
         OS::Print("After Inlining of %s\n", flow_graph_->
                   parsed_function().function().ToFullyQualifiedCString());
         FlowGraphPrinter printer(*flow_graph_);
         printer.PrintBlocks();
       }
     }
   }
 }
 
 }  // namespace dart