Do not use `boost/detail` header in `Show.cpp` (#564)
Do not use `boost/detail` header in `Show.cpp` (#564)

Summary:
Pull Request resolved: https://github.com/facebook/redex/pull/564

As title. Breaks with `boost` `1.74`.

Reviewed By: adicatana

Differential Revision: D24222868

fbshipit-source-id: 777fc2ca816a4e644545b18cbb1047f699755ccd

facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex