re PR java/6391 (Constant float to int conversions don't use ieee_real_to_integer when compiled to byte-code)

	* mauve-libgcj: Don't run java.lang.ref tests since they are buggy.

	* libjava.mauve/xfail: Expect failures for PR java/6391 and
	libgcj/6389.

From-SVN: r52577