class.c (resolve_address_of_overloaded_function): Add explanation message.

	* class.c (resolve_address_of_overloaded_function): Add
	explanation message.
	* decl.c (define_case_label): Reformat explanation.
	* decl2.c (finish_static_data_member_decl): Likewise.
	(grokfield): Likewise.
	* friend.c (do_friend): Likewise.

From-SVN: r36188