[Bug libstdc++/120259] Using Incomplete&& as argument in invoke_r/move_only_function fails to compile

[tkaminsk at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120259

--- Comment #2 from Tomasz Kamiński <tkaminsk at gcc dot gnu.org> ---
This seems to be regeressions from PR1579:
r11-2759-g69f571ffc513b689fa26e4c9fceba17c2c989ab3
r11-3442-gc1fc9f6e10e646f01194c8f150affbc1cfbc404a

I think we went to eager there, and most likely should revert.