PR c++/27292
	* typeck.c (decay_conversion): Don't adjust bitfield types.
	(perform_integral_promotions): Treat bitfield enums as enums, not
	as short integer types.
	* tree.c (rvalue): Convert bitfields to their correct types.
	PR c++/27292
	* g++.dg/conversion/bitfield1.C: New test.
	* g++.dg/conversion/bitfield2.C: Likewise.
	* g++.dg/conversion/bitfield3.C: Likewise.

From-SVN: r113240