Ivy detect changes

detect-changes.ts

export function detectChanges<T>(component: T): void {
  const hostNode = _getComponentHostLElementNode(component);
  ngDevMode && assertNotNull(hostNode.data, 'Component host node should be attached to an LView');
  const componentIndex = hostNode.tNode !.flags >> TNodeFlags.DirectiveStartingIndexShift;
  const def = hostNode.view.tView.directives ![componentIndex] as ComponentDef<T>;
  detectChangesInternal(hostNode.data as LView, hostNode, def, component);
}