diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma_3/Function/regress-49286.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma_3/Function/regress-49286.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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/. */
+
+/*
+ * Date: 2001-07-10
+ *
+ * SUMMARY:  Invoking try...catch through Function.call
+ * See  http://bugzilla.mozilla.org/show_bug.cgi?id=49286
+ *
+ * 1) Define a function with a try...catch block in it
+ * 2) Invoke the function via the call method of Function
+ * 3) Pass bad syntax to the try...catch block
+ * 4) We should catch the error!
+ */
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var BUGNUMBER = 49286;
+var summary = 'Invoking try...catch through Function.call';
+var cnErrorCaught = 'Error caught';
+var cnErrorNotCaught = 'Error NOT caught';
+var cnGoodSyntax = '1==2';
+var cnBadSyntax = '1=2';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+
+
+var obj = new testObject();
+
+status = 'Section A of test: direct call of f';
+actual = f.call(obj);
+expect = cnErrorCaught;
+addThis();
+
+status = 'Section B of test: indirect call of f';
+actual = g.call(obj);
+expect = cnErrorCaught;
+addThis();
+
+
+
+//-----------------------------------------
+test();
+//-----------------------------------------
+
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  for (var i=0; i<UBound; i++)
+  {
+    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+  }
+
+  exitFunc ('test');
+}
+
+
+// An object storing bad syntax as a property -
+function testObject()
+{
+  this.badSyntax = cnBadSyntax;
+  this.goodSyntax = cnGoodSyntax;
+}
+
+
+// A function wrapping a try...catch block
+function f()
+{
+  try
+  {
+    eval(this.badSyntax);
+  }
+  catch(e)
+  {
+    return cnErrorCaught;
+  }
+  return cnErrorNotCaught;
+}
+
+
+// A function wrapping a call to f -
+function g()
+{
+  return f.call(this);
+}
+
+
+function addThis()
+{
+  statusitems[UBound] = status;
+  actualvalues[UBound] = actual;
+  expectedvalues[UBound] = expect;
+  UBound++;
+}