test: add regression test for instanceof

Add regression test for issue #7592. The issue was fixed in upstream V8 and this test case was previously added with a manual cherry pick for v6.x. Related to: #7638 and #7592. PR-URL: #9178 Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: James M Snell <[email protected]>

Author: fhinkel

test/parallel/test-instanceof.js

@@ -0,0 +1,10 @@
+'use strict';
+require('../common');
+constassert=require('assert');
+
+
+// Regression test for instanceof, see
+// https://github.com/nodejs/node/issues/7592
+constF=()=>{};
+F.prototype={};
+assert(Object.create(F.prototype)instanceofF);