Add convenience method to print types for debugging.

src/types.h

 // Copyright 2014 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_TYPES_H_
 #define V8_TYPES_H_
 
 #include "src/factory.h"
 #include "src/handles.h"
 
@@ skipping 413 matching lines @@
   template<class OtherTypeImpl>
   static TypeHandle Convert(
       typename OtherTypeImpl::TypeHandle type, Region* region);
 
   // Printing.
 
   enum PrintDimension { BOTH_DIMS, SEMANTIC_DIM, REPRESENTATION_DIM };
 
   void PrintTo(OStream& os, PrintDimension dim = BOTH_DIMS);  // NOLINT
 
+#ifdef DEBUG
+  void Print();
+#endif
+
  protected:
   // Friends.
 
   template<class> friend class Iterator;
   template<class> friend class TypeImpl;
 
   // Handle conversion.
 
   template<class T>
   static typename Config::template Handle<T>::type handle(T* type) {
@@ skipping 546 matching lines @@
   bool Narrows(BoundsImpl that) {
     return that.lower->Is(this->lower) && this->upper->Is(that.upper);
   }
 };
 
 typedef BoundsImpl<ZoneTypeConfig> Bounds;
 
 } }  // namespace v8::internal
 
 #endif  // V8_TYPES_H_