[Interpreter] Small cleanup on VisitClassLiteral

src/interpreter/bytecode-generator.cc

Index: src/interpreter/bytecode-generator.cc
diff --git a/src/interpreter/bytecode-generator.cc b/src/interpreter/bytecode-generator.cc
index 1200cacd0707baeb4b9dbaf7ffbb079fc94479ad..a22c8314082c3fd4817da0e74ccacf9b2412aea3 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -1402,9 +1402,8 @@ void BytecodeGenerator::VisitClassLiteral(ClassLiteral* expr) {
   VisitClassLiteralForRuntimeDefinition(expr);
 
   // Load the "prototype" from the constructor.
-  RegisterList args = register_allocator()->NewRegisterList(2);
-  Register literal = args[0];
-  Register prototype = args[1];
+  Register literal = register_allocator()->NewRegister();
+  Register prototype = register_allocator()->NewRegister();
   FeedbackVectorSlot slot = expr->PrototypeSlot();
   builder()
       ->StoreAccumulatorInRegister(literal)