Remove more feature in product mode

runtime/vm/ast_printer.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/ast_printer.h"
 
 #include "vm/handles.h"
 #include "vm/log.h"
 #include "vm/object.h"
 #include "vm/os.h"
 #include "vm/parser.h"
 
 namespace dart {
 
+#ifndef PRODUCT
+
 AstPrinter::AstPrinter() : indent_(0) { }
 
 
 AstPrinter::~AstPrinter() { }
 
 
 void AstPrinter::VisitGenericAstNode(AstNode* node) {
   THR_Print("(%s ", node->PrettyName());
   node->VisitChildren(this);
   THR_Print(")");
@@ skipping 542 matching lines @@
   SequenceNode* node_sequence = parsed_function.node_sequence();
   ASSERT(node_sequence != NULL);
   AstPrinter ast_printer;
   const char* function_name =
       parsed_function.function().ToFullyQualifiedCString();
   THR_Print("Ast for function '%s' {\n", function_name);
   node_sequence->Visit(&ast_printer);
   THR_Print("}\n");
 }
 
+#endif  // !PRODUCT
+
 }  // namespace dart