fixed issue #690

std/js/_std/IntHash.hx

@@ -55,7 +55,7 @@
 
 	public function keys() : Iterator<Int> {
 		var a = new Array();
-		untyped __js__("for( x in this.h ) a.push(x)");
+		untyped __js__("for( x in this.h ) a.push(x|0)");
 		return a.iterator();
 	}