test_name wiping-out-types test_description After finalizing a system a new type is introduced, but it causes a precondition violation in the compiler. copy_sub Ace $TEST Ace copy_raw test.e $CLUSTER test.e copy_raw test1.e $CLUSTER test1.e compile_final compile_result ok copy_raw test_rev1.e $CLUSTER test.e copy_raw test2.e $CLUSTER test2.e compile_melted compile_result ok test_end