@main[]
$n(1)

# code junctions ignore in expression flag, this it works
$x(^if(2){^n.int[]^n.int[]})
$x

#this code will work if OPTIMIZE_CALL is undefined after OP_PREPARE_TO_EXPRESSION removed (#1104)
^try-catch{ $y(^test[]) }
$y

@test[]
#test is in expression + CO_WITHOUT_WCONTEXT is on by default, thus exception
^n.int[]^n.int[]