Fix: Array additions (append, insert) should not cause an additional py__iter__ entry if there's none.

jedi/evaluate/iterable.py

@@ -316,7 +316,9 @@ class Array(IterableWrapper, ArrayMixin):
         for value in iterate:
             yield self._evaluator.eval_element(value)
 
-        yield check_array_additions(self._evaluator, self)
+        additions = check_array_additions(self._evaluator, self)
+        if additions:
+            yield additions
 
     def _values(self):
         """Returns a list of a list of node."""
@@ -709,7 +711,9 @@ class _ArrayInstance(IterableWrapper):
             yield types
         module = self.var_args.get_parent_until()
         is_list = str(self.instance.name) == 'list'
-        yield _check_array_additions(self._evaluator, self.instance, module, is_list)
+        additions = _check_array_additions(self._evaluator, self.instance, module, is_list)
+        if additions:
+            yield additions
 
 
 class Slice(object):

test/completion/comprehensions.py

@@ -44,7 +44,7 @@ left, right = [x for x in (left, right)]
 left
 
 # with a dict literal
-#? str()
+#? int()
 [a for a in {1:'x'}][0]
 
 # list comprehensions should also work in combination with functions