[Bug d/105544] gdc fails to compile d source from stdin

[fabian--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105544

--- Comment #1 from Fabian Vogt <fab...@ritter-vogt.de> ---
Forgot to mention: Happens with gdc 10, 11 and 12 the same way.