diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Script-getAllColumnOffsets-04.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Script-getAllColumnOffsets-04.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+// getColumnOffsets correctly places object properties.
+
+var global = newGlobal();
+Debugger(global).onDebuggerStatement = function (frame) {
+    var script = frame.eval("f").return.script;
+    script.getAllColumnOffsets().forEach(function (offset) {
+        script.setBreakpoint(offset.offset, {
+            hit: function (frame) {
+                assertEq(offset.lineNumber, 1);
+                global.log += offset.columnNumber + " ";
+            }
+        });
+    });
+};
+
+global.log = '';
+global.eval("function f(n){var o={a:1,b:2,c:3}} debugger;");
+global.f(3);
+// Should hit each property in the object.
+assertEq(global.log, "18 21 25 29 19 ");