Prepare interpreter for function calling (#21558)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21558
ghimport-source-id: a8a19dbefea869ca1401e5afea6c02f31f95b99a
Reviewed By: suo
Differential Revision: D15729491
Pulled By: zdevito
fbshipit-source-id: 9629664608a2379a2ddcafaf741fa8463c4fb917
