Function for_range_sums

tests/integration/hll_conformance.rs:237–251

()

// --- `for` over ranges (lowers to `while`) ---

#[test]
fn for_range_sums() {
    // Half-open `0..5` iterates 0,1,2,3,4 -> sum 10.
    assert_exit(
        r#"
main: () -> i32 {
    total: i32 = 0
    for i in 0..5 {
        total = total + i
    }
    return total
}
"#,
        10,
    );
}