[Bug c++/83950] [8 regression] error: no matching function for call to ‘folly::dynamic::at(size_t&) const’

[skpgkp1 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83950

--- Comment #3 from Sunil Pandey <skpgkp1 at gmail dot com> ---
I shouldn't say it's bug, sorry about that. Just application build regression
from GCC 7 to GCC 8. Looks like creduce reduced this test case too much in this
case.