Assert in navbar for namespace imports

[mhegazy]

import *{ Member } from './b';
const m: Member = undefined;
export { Member };

Error: Debug Failure. False expression: 
   at assert (TypeScript Non Blocking Syntactic Feature Thread_0:2082:17)
   at fail (TypeScript Non Blocking Syntactic Feature Thread_0:2087:13)
   at getItemName (TypeScript Non Blocking Syntactic Feature Thread_0:46697:21)
   at convertToChildItem (TypeScript Non Blocking Syntactic Feature Thread_0:46793:17)
   at map (TypeScript Non Blocking Syntactic Feature Thread_0:1043:17)
   at convertToTopLevelItem (TypeScript Non Blocking Syntactic Feature Thread_0:46787:17)
   at map (TypeScript Non Blocking Syntactic Feature Thread_0:1043:17)
   at getNavigationBarItems (TypeScript Non Blocking Syntactic Feature Thread_0:46333:13)
   at getNavigationBarItems (TypeScript Non Blocking Syntactic Feature Thread_0:57394:13)
   at Anonymous function (TypeScript Non Blocking Syntactic Feature Thread_0:59959:100)
   at simpleForwardCall (TypeScript Non Blocking ......