From 3aa92c76cc0da3ed7154e80b8722b1253c3576cb Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Mon, 16 May 2022 04:11:10 +0100
Subject: [PATCH] avoid `extends` error in `ufuzz` (#5447)

---
 test/ufuzz/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/ufuzz/index.js b/test/ufuzz/index.js
index 37dce302..c5151996 100644
--- a/test/ufuzz/index.js
+++ b/test/ufuzz/index.js
@@ -1805,7 +1805,7 @@ function createClassLiteral(recurmax, stmtDepth, canThrow, name) {
         if (canThrow && rng(20) == 0) {
             s += p;
         } else {
-            s += "(typeof " + p + ' == "function" && typeof ' + p + '.prototype == "object" ? ' + p + " : function() {})";
+            s += "(typeof " + p + ' == "function" && typeof ' + p + '.prototype == "object" && ' + p + ".constructor === Function ? " + p + " : function() {})";
         }
     }
     s += " {\n";