[turbofan] Advance bytecode offset after lazy deopt.

src/runtime/runtime-interpreter.cc

 // Copyright 2015 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/runtime/runtime-utils.h"
 
 #include <iomanip>
 
 #include "src/arguments.h"
 #include "src/frames-inl.h"
@@ skipping 153 matching lines @@
 }
 
 RUNTIME_FUNCTION(Runtime_InterpreterSetPendingMessage) {
   SealHandleScope shs(isolate);
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, message, 0);
   isolate->thread_local_top()->pending_message_obj_ = *message;
   return isolate->heap()->undefined_value();
 }
 
+RUNTIME_FUNCTION(Runtime_InterpreterAdvanceBytecodeOffset) {
+  SealHandleScope shs(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(BytecodeArray, bytecode_array, 0);
+  CONVERT_SMI_ARG_CHECKED(bytecode_offset, 1);
+  interpreter::BytecodeArrayIterator it(bytecode_array);
+  int offset = bytecode_offset - BytecodeArray::kHeaderSize + kHeapObjectTag;
+  while (it.current_offset() < offset) it.Advance();
+  DCHECK_EQ(offset, it.current_offset());
+  it.Advance();  // Advance by one bytecode.
+  offset = it.current_offset() + BytecodeArray::kHeaderSize - kHeapObjectTag;
+  return Smi::FromInt(offset);
+}
+
 }  // namespace internal
 }  // namespace v8