[Bug c/67925] docs lie about being unable to inline function call before definition

[arkadiusz at drabczyk dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67925

--- Comment #10 from Arkadiusz Drabczyk <arkadiusz at drabczyk dot org> ---
Patch sent for review here:
https://gcc.gnu.org/ml/gcc-patches/2015-10/msg01303.html