Since version 3.2, clang warns about unused member variables
(-Wunused-private-field). Marking such members with
Q_DECL_UNUSED_MEMBER will silence this warning.
This is a cleaner way than using Q_UNUSED() somewhere in the class
methods (like we did previously in qloggingcategory.cpp). It
mirrors Q_DECL_UNUSED for unused variables, which however can't be
used unconditionally for member variables because e.g. gcc will
complain.
Change-Id: I2afff683a7c3bae3bdcd684e5085a643887bb2a0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: hjk <hjk121@nokiamail.com>
9782938045