[Interpreter] Avoid accessing Isolate from during bytecode generation.

src/interpreter/bytecode-register-optimizer.cc

Index: src/interpreter/bytecode-register-optimizer.cc
diff --git a/src/interpreter/bytecode-register-optimizer.cc b/src/interpreter/bytecode-register-optimizer.cc
index 93b7c090b98e7ed954baad291ad4fc5b5ddea70f..d28f215de856634a36816853af68d925e4b25d67 100644
--- a/src/interpreter/bytecode-register-optimizer.cc
+++ b/src/interpreter/bytecode-register-optimizer.cc
@@ -208,11 +208,11 @@ BytecodeRegisterOptimizer::BytecodeRegisterOptimizer(
 
 // override
 Handle<BytecodeArray> BytecodeRegisterOptimizer::ToBytecodeArray(
-    int fixed_register_count, int parameter_count,
+    Isolate* isolate, int fixed_register_count, int parameter_count,
     Handle<FixedArray> handler_table) {
   FlushState();
-  return next_stage_->ToBytecodeArray(fixed_register_count, parameter_count,
-                                      handler_table);
+  return next_stage_->ToBytecodeArray(isolate, fixed_register_count,
+                                      parameter_count, handler_table);
 }
 
 // override