Function lazyDeselection

deps/v8/test/mjsunit/optimized-filter.js:89–98

(deopt)

(function() {
  var a = [1, 2, 3, 4, 5];
  var lazyDeselection = function(deopt) {
    var callback = function(v,i,o) {
      if (i === 2 && deopt) {
        %DeoptimizeNow();
        return false;
       }
      return true;
    }
    return a.filter(callback);
  };
  %PrepareFunctionForOptimization(lazyDeselection);
  assertEquals(a, lazyDeselection());
  lazyDeselection();