[Bug jit/87291] Add support for inline asm to libgccjit

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87291

--- Comment #17 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
(also uploaded to
https://dmalcolm.fedorapeople.org/gcc/2020-06-04/0001-FIXME-WIP-on-extended-asm-support.patch
)