1 # Add 3 and 4, and return the result in the exit code.
 2 #
 3 # To run:
 4 #   $ ./translate_mu apps/ex2.mu
 5 #   $ ./a.elf
 6 # Expected result:
 7 #   $ echo $?
 8 #   7
 9 
10 fn main -> result/ebx: int {
11   result <- do-add 3 4
12 }
13 
14 fn do-add a: int, b: int -> result/ebx: int {
15   result <- copy a
16   result <- add b
17 }