Checks for metaclass's __repr__ in _type_pprint

RepresentationPrinter has a type pprinter for 'type' subclasses. It will
thus be called to print a class object (instance of 'type), avoiding the
__repr__ of the metaclass.

This patch checks for an overridden __repr__ before using the custom
type-representation logic.

IPython/lib/pretty.py

@@ -682,6 +682,12 b' def _type_pprint(obj, p, cycle):'
     """The pprint for classes and types."""
     # Heap allocated types might not have the module attribute,
     # and others may set it to None.
+
+    # Checks for a __repr__ override in the metaclass
+    if type(obj).__repr__ is not type.__repr__:
+        p.text(repr(obj))
+        return
+
     mod = _safe_getattr(obj, '__module__', None)
     name = _safe_getattr(obj, '__qualname__', obj.__name__)