message: test(typeahead): update typeahead spec test for promises
diff: -/* tslint:disable:max-file-line-count */
  +/* tslint:disable:no-floating-promises max-file-line-count */
  import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
  import { By } from '@angular/platform-browser';
  import { Component, DebugElement } from '@angular/core';
  