[cfe-dev] [BUG] Support for W[no-]unused-but-set-{variable, parameter}

[Ramkumar Ramachandra]

Hi,

These warnings are included by default with -Wall in GCC 4.6 [1], and
Clang should support them instead of throwing
-Wunknown-warning-option.

I'd like some pointers so we can fix this bug now.

[1]: http://gcc.gnu.org/gcc-4.6/porting_to.html

Thanks.