Fix __iter__

Author: AlexECX

transcrypt/modules/org/transcrypt/compiler.py

@@ -2781,7 +2781,7 @@ def pushPropertyAccessor(functionName):
                         self.emit (');}})')
 
                 if nodeName == '__iter__':
-                    self.emit (';\ncls[Symbol.iterator] = () => cls.__iter__')
+                    self.emit (';\ncls[Symbol.iterator] = () => cls.__iter__()')
 
                 if nodeName == '__next__':
                     self.emit (';\ncls.next = __jsUsePyNext__')  # ??? Shouldn't this be a property, to allow bound