re PR java/52730 (Java front end emits assembly)

	PR java/52730
	* class.c (emit_register_classes_in_jcr_section): New function.
	(emit_Jv_RegisterClass_calls): New function, split out from ...
	(emit_register_classes): ... here. Reorganize.  Do not call
	output_constant.

From-SVN: r185977