[JIT] Better error on default params error (#35888)
Summary:
Someone messaged me abt this when a better error msg would have solved their problem
Pull Request resolved: https://github.com/pytorch/pytorch/pull/35888
Differential Revision: D20819538
Pulled By: eellison
fbshipit-source-id: 95d124bfd162e1747dcdf7a981703a279a5dfaa6
