1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/regress-255245.js b/js/src/tests/non262/extensions/regress-255245.js
new file mode 100644
index 0000000000..9d486fe962
--- /dev/null
+++ b/js/src/tests/non262/extensions/regress-255245.js
@@ -0,0 +1,29 @@
+// |reftest| skip-if(!Function.prototype.toSource)
+
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 255245;
+var summary = 'Function.prototype.toSource/.toString show "setrval" instead of "return"';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+function f() {
+  try {
+  } catch (e) {
+    return false;
+  }
+  finally {
+  }
+}
+
+expect = -1;
+actual = f.toSource().indexOf('setrval');
+
+reportCompare(expect, actual, summary);