[ignition] Rewrite reverse iterator as random iterator

src/compiler/bytecode-analysis.h

 // Copyright 2016 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_COMPILER_BYTECODE_ANALYSIS_H_
 #define V8_COMPILER_BYTECODE_ANALYSIS_H_
 
 #include "src/base/hashmap.h"
 #include "src/bit-vector.h"
 #include "src/compiler/bytecode-liveness-map.h"
@@ skipping 48 matching lines @@
 
   Zone* zone() const { return zone_; }
   Handle<BytecodeArray> bytecode_array() const { return bytecode_array_; }
 
  private:
   Handle<BytecodeArray> bytecode_array_;
   bool do_liveness_analysis_;
   Zone* zone_;
 
   ZoneStack<int> loop_stack_;
+  ZoneVector<int> loop_end_index_queue_;
 
   ZoneMap<int, int> end_to_header_;
   ZoneMap<int, int> header_to_parent_;
 
   BytecodeLivenessMap liveness_map_;
 
   DISALLOW_COPY_AND_ASSIGN(BytecodeAnalysis);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_BYTECODE_ANALYSIS_H_