perf(Core): Micro-optimize ComponentFactory.createHostView.
perf(Core): Micro-optimize ComponentFactory.createHostView.

PiperOrigin-RevId: 172009879

chalin/angular2,angulardart/angular,chalin/angular2,kevmoo/angular,matanlurey/angular,angulardart/angular,matanlurey/angular,kevmoo/angular,kevmoo/angular,chalin/angular2,matanlurey/angular,angulardart/angular