Core issue 1331 - const mismatch with defaulted copy constructor
	* class.c (check_bases_and_members): When checking a defaulted
	function, mark it as deleted rather than giving an error.

	* g++.dg/cpp0x/defaulted15.C (struct F): Remove dg-error.
	* g++.dg/cpp0x/defaulted52.C: New test.
	* g++.dg/cpp0x/defaulted53.C: New test.
	* g++.dg/cpp0x/defaulted54.C: New test.
	* g++.dg/cpp0x/defaulted55.C: New test.
	* g++.dg/cpp0x/defaulted56.C: New test.
	* g++.dg/cpp0x/defaulted57.C: New test.
	* g++.dg/cpp0x/defaulted58.C: New test.
	* g++.dg/cpp0x/defaulted59.C: New test.
	* g++.dg/cpp0x/defaulted60.C: New test.

From-SVN: r261526