fix a completion in dict problem

jedi/helpers.py

@@ -68,6 +68,12 @@ def check_arr_index(arr, pos):
 def array_for_pos(stmt, pos, array_types=None):
     """Searches for the array and position of a tuple"""
     def search_array(arr, pos):
+        if arr.type == 'dict':
+            for stmt in arr.values + arr.keys:
+                new_arr, index = array_for_pos(stmt, pos, array_types)
+                if new_arr is not None:
+                    return new_arr, index
+        else:
             for i, stmt in enumerate(arr):
                 new_arr, index = array_for_pos(stmt, pos, array_types)
                 if new_arr is not None:

test/completion/arrays.py

@@ -181,6 +181,11 @@ def f():
 
 #? dict()
 f()
+
+# completion within dicts
+#? 9 ['str']
+{str: str}
+
 # -----------------
 # with variable as index
 # -----------------