[turbofan] Initial attempt to cleanup Node and related classes.

src/compiler/graph-visualizer.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/graph-visualizer.h"
 
 #include <sstream>
 #include <string>
 
 #include "src/code-stubs.h"
@@ skipping 399 matching lines @@
 
  private:
   void PrintIndent();
   void PrintStringProperty(const char* name, const char* value);
   void PrintLongProperty(const char* name, int64_t value);
   void PrintIntProperty(const char* name, int value);
   void PrintBlockProperty(const char* name, BasicBlock::Id block_id);
   void PrintNodeId(Node* n);
   void PrintNode(Node* n);
   void PrintInputs(Node* n);
-  void PrintInputs(InputIter* i, int count, const char* prefix);
+  template <typename InputIterator>
+  void PrintInputs(InputIterator* i, int count, const char* prefix);
   void PrintType(Node* node);
 
   void PrintLiveRange(LiveRange* range, const char* type);
   class Tag FINAL BASE_EMBEDDED {
    public:
     Tag(GraphC1Visualizer* visualizer, const char* name) {
       name_ = name;
       visualizer_ = visualizer;
       visualizer->PrintIndent();
       visualizer_->os_ << "begin_" << name << "\n";
@@ skipping 78 matching lines @@
 void GraphC1Visualizer::PrintNodeId(Node* n) { os_ << "n" << SafeId(n); }
 
 
 void GraphC1Visualizer::PrintNode(Node* n) {
   PrintNodeId(n);
   os_ << " " << *n->op() << " ";
   PrintInputs(n);
 }
 
 
-void GraphC1Visualizer::PrintInputs(InputIter* i, int count,
+template <typename InputIterator>
+void GraphC1Visualizer::PrintInputs(InputIterator* i, int count,
                                     const char* prefix) {
   if (count > 0) {
     os_ << prefix;
   }
   while (count > 0) {
     os_ << " ";
     PrintNodeId(**i);
     ++(*i);
     count--;
   }
@@ skipping 293 matching lines @@
         os << "#" << SafeId(i) << ":" << SafeMnemonic(i);
       }
       os << ")" << std::endl;
     }
   }
   return os;
 }
 }
 }
 }  // namespace v8::internal::compiler