Test for struct pointer loop.

tests/run/type_inference.pyx

@@ -333,6 +333,20 @@ def loop_over_int_array():
         pass
     return typeof(i)
 
+cdef struct MyStruct:
+    int a
+
+def loop_over_struct_ptr():
+    """
+    >>> print( loop_over_struct_ptr() )
+    MyStruct
+    """
+    cdef MyStruct a_list[10]
+    cdef MyStruct *a_ptr = a_list
+    for i in a_list[:10]:
+        pass
+    return typeof(i)
+
 cdef unicode retu():
     return u"12345"