[turbofan] Advance bytecode offset after lazy deopt.

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index 9b6662eeba69b99a80accd162fe29957611e5f86..48e29f4173bf2ae88f633f39652e3fb00c4abfd1 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -12,6 +12,7 @@
 #include "src/compilation-info.h"
 #include "src/compiler.h"
 #include "src/factory.h"
+#include "src/interpreter/bytecode-array-iterator.h"
 #include "src/interpreter/bytecode-flags.h"
 #include "src/interpreter/bytecode-generator.h"
 #include "src/interpreter/bytecodes.h"
@@ -261,6 +262,19 @@ uintptr_t Interpreter::GetDispatchCounter(Bytecode from, Bytecode to) const {
                                            to_index];
 }
 
+// static
+int Interpreter::AdvanceBytecodeOffset(BytecodeArray* bytecode_array,
+                                       int bytecode_offset) {
+  DisallowHeapAllocation no_gc;
+  HandleScope scope(bytecode_array->GetIsolate());
+  BytecodeArrayIterator it(handle(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.
+  return it.current_offset() + BytecodeArray::kHeaderSize - kHeapObjectTag;
+}
+
 Local<v8::Object> Interpreter::GetDispatchCountersObject() {
   v8::Isolate* isolate = reinterpret_cast<v8::Isolate*>(isolate_);
   Local<v8::Context> context = isolate->GetCurrentContext();