PR c++/48450
	* typeck.c (check_for_casting_away_constness): Take complain.
	(build_static_cast_1, build_reinterpret_cast_1): Pass it.
	(build_const_cast_1): Pass it.  Take full complain parm.
	(build_const_cast, cp_build_c_cast): Adjust.

From-SVN: r172145