original.name="DoWhile_Invalid_1"
js.execute.ignore=true
======
>>> main.whiley
function count(int n) -> (int r)
ensures r == n:
    //
    int i = 0
    //
    do:
        i = i + 1
    while i < n where i >= 0 && i <= n
    //
    return i

public export method test():
    assume count(-1) == 0
    assume count(0) == 0
    assume count(1) == 1
    assume count(2) == 2        

---
E703 main.whiley 8,22:37
E720 main.whiley 8,22:37