Ignore more exceptions in stubtest (#11946)

See python/typeshed#6801.

mypy/stubtest.py

@@ -269,11 +269,14 @@ def verify_typeinfo(
  mangled_entry = "_{}{}".format(stub.name, entry)
  stub_to_verify = next((t.names[entry].node for t in stub.mro if entry in t.names), MISSING)
  assert stub_to_verify is not None
- yield from verify(
- stub_to_verify,
- getattr(runtime, mangled_entry, MISSING),
- object_path + [entry],
- )
+ try:
+ runtime_attr = getattr(runtime, mangled_entry, MISSING)
+ except Exception:
+ # Catch all exceptions in case the runtime raises an unexpected exception
+ # from __getattr__ or similar.
+ pass
+ else:
+ yield from verify(stub_to_verify, runtime_attr, object_path + [entry])
 
 
 def _verify_static_class_methods(