From 2b4c2301a9df38cf13e8020b7e9f402af30ab0e7 Mon Sep 17 00:00:00 2001
From: Idan Horowitz <idan.horowitz@gmail.com>
Date: Sun, 25 Apr 2021 23:35:23 +0300
Subject: [PATCH] LibJS: Stop rolling back parser state that is immediately
 replaced

This showed up on a profile (barely), so should help a tiny bit with
perf in parsing arrow functions.
---
 Userland/Libraries/LibJS/Parser.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Userland/Libraries/LibJS/Parser.cpp b/Userland/Libraries/LibJS/Parser.cpp
index f34d6eb2e2..2132c20315 100644
--- a/Userland/Libraries/LibJS/Parser.cpp
+++ b/Userland/Libraries/LibJS/Parser.cpp
@@ -346,7 +346,6 @@ RefPtr<FunctionExpression> Parser::try_parse_arrow_function_expression(bool expe
     auto rule_start = push_start();
 
     ArmedScopeGuard state_rollback_guard = [&] {
-        m_parser_state.m_var_scopes.take_last();
         load_state();
     };