diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma/extensions/errorcolumnblame.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma/extensions/errorcolumnblame.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,73 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var BUGNUMBER = 568142;
+var summary = 'error reporting blames column as well as line';
+
+function test(f, col) {
+    var caught = false;
+    try {
+        f();
+    } catch (e) {
+        caught = true;
+        assertEq(e.columnNumber, col);
+    }
+    assertEq(caught, true);
+}
+
+/* Note single hard tab before return! */
+function foo(o) {
+	return o.p;
+}
+test(foo, 1);
+
+//234567890123456789
+test(function(f) { return f.bar; }, 19);
+test(function(f) { return f(); }, 19);
+/* Cover negative colspan case using for(;;) loop with error in update part. */
+test(function(){
+        //0         1         2         3         4
+        //012345678901234567890123456789012345678901
+    eval("function baz() { for (var i = 0; i < 10; i += a.b); assertEq(i !== i, true); }");
+    baz();
+}, 41);
+
+//        1         2         3
+//234567890123456789012345678901234
+test(function() { var tmp = null; tmp(); }, 34)
+test(function() { var tmp = null;  tmp.foo; }, 35)
+
+/* Just a generic 'throw'. */
+test(function() {
+//234567890123
+    foo({}); throw new Error('a');
+}, 13);
+
+/* Be sure to report the right statement */
+test(function() {
+    function f() { return true; }
+    function g() { return false; }
+//234567890123456789012345678
+    f(); g(); f(); if (f()) a += e;
+}, 28);
+
+//2345678901234567890
+test(function() { e++; }, 18);
+test(function() {print += e; }, 17);
+test(function(){e += 1 }, 16);
+test(function() {  print[e]; }, 19);
+test(function() { e[1]; }, 18);
+test(function() { e(); }, 18);
+test(function() { 1(); }, 18);
+test(function() { Object.defineProperty() }, 18);
+
+test(function() {
+//23456789012345678901
+    function foo() { asdf; } foo()
+}, 21);
+
+reportCompare(0, 0, "ok");
+
+printStatus("All tests passed!");