[Emit] Import statement is not emited if alias is used in error position

[mhegazy]

import Sammy = require("errorsOnImportedSymbol_0");
var x = new Sammy.Sammy(); // Sammy.Sammy does not exist 
var y = Sammy.Sammy(); // Sammy.Sammy does not exist

Expected:

var Sammy = require ( "errorsOnImportedSymbol_0" ) ;
var x = new Sammy . Sammy ( ) ;
var y = Sammy . Sammy ( ) ;

Actual:

var x = new Sammy . Sammy ( ) ;
var y = Sammy . Sammy ( ) ;

[vladima]

cannot reproduce on the latest bits