Adding AstNode::PrettyPrint and AstNode::PrintAst

src/ast/ast.h

 // Copyright 2012 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_AST_AST_H_
 #define V8_AST_AST_H_
 
 #include "src/assembler.h"
 #include "src/ast/ast-value-factory.h"
 #include "src/ast/modules.h"
@@ skipping 178 matching lines @@
 
   void* operator new(size_t size, Zone* zone) { return zone->New(size); }
 
   explicit AstNode(int position): position_(position) {}
   virtual ~AstNode() {}
 
   virtual void Accept(AstVisitor* v) = 0;
   virtual NodeType node_type() const = 0;
   int position() const { return position_; }
 
+#ifdef DEBUG
+  void PrettyPrint(Isolate* isolate);
+  void PrettyPrint();
+  void PrintAst(Isolate* isolate);
+  void PrintAst();
+#endif  // DEBUG
+
   // Type testing & conversion functions overridden by concrete subclasses.
 #define DECLARE_NODE_FUNCTIONS(type) \
   bool Is##type() const { return node_type() == AstNode::k##type; } \
   type* As##type() { \
     return Is##type() ? reinterpret_cast<type*>(this) : NULL; \
   } \
   const type* As##type() const { \
     return Is##type() ? reinterpret_cast<const type*>(this) : NULL; \
   }
   AST_NODE_LIST(DECLARE_NODE_FUNCTIONS)
@@ skipping 3317 matching lines @@
   // the parser-level zone.
   Zone* parser_zone_;
   AstValueFactory* ast_value_factory_;
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_AST_AST_H_