Consistently start (almost) all AstPrinter::VisitFoo functions with IndentedScope.

src/prettyprinter.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 88 matching lines @@
 
   void PrintStatements(ZoneList<Statement*>* statements);
   void PrintDeclarations(ZoneList<Declaration*>* declarations);
   void PrintParameters(Scope* scope);
   void PrintArguments(ZoneList<Expression*>* arguments);
   void PrintCaseClause(CaseClause* clause);
   void PrintLiteralIndented(const char* info, Handle<Object> value, bool quote);
   void PrintLiteralWithModeIndented(const char* info,
                                     Variable* var,
                                     Handle<Object> value);
-  void PrintLabelsIndented(const char* info, ZoneStringList* labels);
+  void PrintLabelsIndented(ZoneStringList* labels);
 
   void inc_indent() { indent_++; }
   void dec_indent() { indent_--; }
 
   int indent_;
 };
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal
 
 #endif  // V8_PRETTYPRINTER_H_