Fix the test for bug 1173787 to work even when the filename contains a ':' (e.g. on Windows) so we can reopen the CLOSED TREE

js/src/jit-test/tests/basic/exception-column-number.js

@@ -3,6 +3,9 @@ try {
 } catch (e) {
     assertEq(e.columnNumber, 5);
     // Filter the filename from the stack, since we have no clue what
-    // to expect there.
-    assertEq(e.stack.replace(/[^:]*/, ""), ":2:5\n");
+    // to expect there.  Search for ':' from the end, because the file
+    // path may contain ':' in it.
+    var lastColon = e.stack.lastIndexOf(':');
+    var afterPath = e.stack.lastIndexOf(':', lastColon - 1);
+    assertEq(e.stack.substring(afterPath), ":2:5\n");
 }