Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/js/src/tests/non262/regress/regress-554955-1.js b/js/src/tests/non262/regress/regress-554955-1.js
new file mode 100644
index 0000000000..80c26b0880
--- /dev/null
+++ b/js/src/tests/non262/regress/regress-554955-1.js
@@ -0,0 +1,33 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+function f(s) {
+  eval(s);
+  return function(a) {
+    var d;
+    {
+      let c = 3;
+      d = function() { a; }; // force Block object to be cloned
+      with({}) {}; // repel JägerMonkey
+      return b; // lookup occurs in scope of Block
+    }
+  };
+}
+
+var b = 1;
+var g1 = f("");
+var g2 = f("var b = 2;");
+
+/* Call the lambda once, caching a reference to the global b. */
+g1(0);
+
+/* 
+ * If this call sees the above cache entry, then it will erroneously use the
+ * global b.
+ */
+assertEq(g2(0), 2);
+
+reportCompare(true, true);