_repr_html_ exception reporting corner case when using type(foo) #4990

In [11]: class Foo(object):
    ...:     def _repr_html_(self):
    ...:         return "Me"
    ...: x=Foo()
In [12]: type(x)
/home/user1/src/ipython/IPython/core/formatters.py:199: FormatterWarning: 
Exception in text/html formatter: unbound method _repr_html_() must 
be called with Foo instance as first argument (got nothing instead)
  FormatterWarning,