[Bug c++/68669] -Wunused-variable is not correctly supressed by #pragmas

[pavel.celba at ricardo dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68669

--- Comment #2 from Pavel Celba <pavel.celba at ricardo dot com> ---
Created attachment 36893
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36893&action=edit
Preprocessed run_tests.cpp

Added the pre-processed run_tests.cpp