Remove more feature in product mode

runtime/vm/flow_graph_builder.cc

 // Copyright (c) 2012, 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/flow_graph_builder.h"
 
 #include "lib/invocation_mirror.h"
 #include "vm/ast_printer.h"
 #include "vm/bit_vector.h"
 #include "vm/compiler.h"
@@ skipping 4604 matching lines @@
 
 void EffectGraphVisitor::VisitStopNode(StopNode* node) {
   AddInstruction(new(Z) StopInstr(node->message()));
 }
 
 
 FlowGraph* FlowGraphBuilder::BuildGraph() {
   VMTagScope tagScope(Thread::Current(),
                       VMTag::kCompileFlowGraphBuilderTagId,
                       FLAG_profile_vm);
-  if (FLAG_print_ast) {
+  if (FLAG_support_ast_printer && FLAG_print_ast) {
     // Print the function ast before IL generation.
     AstPrinter::PrintFunctionNodes(parsed_function());
   }
-  if (FLAG_print_scopes) {
+  if (FLAG_support_ast_printer && FLAG_print_scopes) {
     AstPrinter::PrintFunctionScope(parsed_function());
   }
   TargetEntryInstr* normal_entry =
       new(Z) TargetEntryInstr(AllocateBlockId(),
                               CatchClauseNode::kInvalidTryIndex);
   graph_entry_ =
       new(Z) GraphEntryInstr(parsed_function(), normal_entry, osr_id_);
   EffectGraphVisitor for_effect(this);
   parsed_function().node_sequence()->Visit(&for_effect);
   AppendFragment(normal_entry, for_effect);
@@ skipping 28 matching lines @@
                    Script::Handle(function.script()),
                    function.token_pos(),
                    Report::AtLocation,
                    "FlowGraphBuilder Bailout: %s %s",
                    String::Handle(function.name()).ToCString(),
                    reason);
   UNREACHABLE();
 }
 
 }  // namespace dart