[turbofan] Print API for Node.

src/compiler/node.h

 // 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.
 
 #ifndef V8_COMPILER_NODE_H_
 #define V8_COMPILER_NODE_H_
 
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 #include "src/types.h"
@@ skipping 168 matching lines @@
 
   Uses uses() { return Uses(this); }
 
   // Returns true if {owner} is the user of {this} node.
   bool OwnedBy(Node* owner) const {
     return first_use_ && first_use_->from() == owner && !first_use_->next;
   }
 
   // Returns true if {owner1} and {owner2} are the only users of {this} node.
   bool OwnedBy(Node const* owner1, Node const* owner2) const;
+  void Print() const;
 
  private:
   struct Use;
   // Out of line storage for inputs when the number of inputs overflowed the
   // capacity of the inline-allocated space.
   struct OutOfLineInputs {
     Node* node_;
     int count_;
     int capacity_;
     Node* inputs_[1];
@@ skipping 355 matching lines @@
 }
 
 
 Node::Uses::const_iterator Node::Uses::end() const { return const_iterator(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_NODE_H_