1 # Increment a number, and return the result in the exit code.
 2 #
 3 # To run:
 4 #   $ ./translate_mu apps/ex2.2.mu
 5 #   $ ./a.elf
 6 # Expected result:
 7 #   $ echo $?
 8 #   7
 9 
10 fn main -> result/ebx: int {
11   result <- foo
12 }
13 
14 fn foo -> result/ebx: int {
15   var n: int
16   copy-to n, 3
17   increment n
18   result <- copy n
19 }