[Bug c++/68669] [5 regression] -Wunused-variable in anonymous namespace is not correctly supressed by #pragmas

[hubicka at ucw dot cz]

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

--- Comment #11 from Jan Hubicka <hubicka at ucw dot cz> ---
The commit implements removal of stores to write only variables. I suppose that
makes them unused. This could trigger more warnings
though of course they should honnor -Wno-unused....

Honza