[deoptimizer] Potentially deopt into debug bytecode.

src/deoptimizer.cc

 // Copyright 2013 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.
 
 #include "src/deoptimizer.h"
 
 #include <memory>
 
 #include "src/accessors.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 1216 matching lines @@
 
   // The new.target slot is only used during function activiation which is
   // before the first deopt point, so should never be needed. Just set it to
   // undefined.
   output_offset -= kPointerSize;
   Object* new_target = isolate_->heap()->undefined_value();
   WriteValueToOutput(new_target, 0, frame_index, output_offset, "new_target  ");
 
   // Set the bytecode array pointer.
   output_offset -= kPointerSize;
-  Object* bytecode_array = shared->bytecode_array();
+  Object* bytecode_array = shared->HasDebugInfo()
+                               ? shared->GetDebugInfo()->DebugBytecodeArray()
+                               : shared->bytecode_array();
   WriteValueToOutput(bytecode_array, 0, frame_index, output_offset,
                      "bytecode array ");
 
   // The bytecode offset was mentioned explicitly in the BEGIN_FRAME.
   output_offset -= kPointerSize;
   int raw_bytecode_offset =
       BytecodeArray::kHeaderSize - kHeapObjectTag + bytecode_offset;
   Smi* smi_bytecode_offset = Smi::FromInt(raw_bytecode_offset);
   WriteValueToOutput(smi_bytecode_offset, 0, frame_index, output_offset,
                      "bytecode offset ");
@@ skipping 2758 matching lines @@
       CHECK(value_info->IsMaterializedObject());
 
       value_info->value_ =
           Handle<Object>(previously_materialized_objects->get(i), isolate_);
     }
   }
 }
 
 }  // namespace internal
 }  // namespace v8