[TIMOB-7344] iOS: Views - Nested view cannot be displayed when dimension property is defined using percentage

var win = Ti.UI.createWindow({
  layout: 'vertical', 
  fullscreen: true
});

var view = Ti.UI.createView({
  layout: 'horizontal',
  height: 50,
  backgroundColor: '#ccf',
  width: '50%'
});
var nested_view = Ti.UI.createView({
  height: 50,
  backgroundColor: '#cfc',
  width: '50%'
});

var control = Ti.UI.createView({
	layout:'horizontal',
	height:50,
	backgroundColor: 'red',
	width: 160 // 50% of portrait screen width
});
var nested_control = Ti.UI.createView({
	height:50,
	backgroundColor:'green',
	width: 80 // 25% of portrait screen width
});

view.add(nested_view);
win.add(view);

control.add(nested_control);
win.add(control);

win.open();