test_name 	alt-precondition-call-on-void-target
test_description A function whose return type is expanded is redefined in a descendant with with an alternate True precondition.  A call to the function returns void in a void-safe system, which should be impossible, but only if the system is melted.

copy_sub 	Ace $TEST Ace
copy_raw 	test.e $CLUSTER test.e
copy_raw 	test0.e $CLUSTER test0.e
copy_raw 	test1.e $CLUSTER test1.e
copy_raw 	test2.e $CLUSTER test2.e

compile_melted
compile_result	ok

execute_work 	NONE exec_output1
execute_result 	ok
compare		exec_output1 output

compile_frozen
compile_result	ok

c_compile_work
c_compile_result	ok

execute_work 	NONE exec_output2
execute_result 	ok
compare		exec_output2 output

test_end