[Bug target/94770] class with empty base passed incorrectly with -std=c++17 on mingw

[sbence92 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94770

--- Comment #3 from Bence Szabó <sbence92 at gmail dot com> ---
Created attachment 48379
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48379&action=edit
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