Function f4

deps/v8/test/debugger/debug/for-in-opt.js:100–107

(o, p)

var p = {x: "x"}

function f4(o, p) {
  var result = [];
  for (var i in o) {
    var j = p.x + "str";
    result.push(i);
  }
  return result;
}

function check_f4() {
  assertEquals(keys, f4(o, p));