// Phase 186: Simple Body-local Init Lowering Test (Pattern2)
//
// Tests body-local init expressions used ONLY in updates, NOT in conditions.
// This is within Phase 186 scope (int/arithmetic init, condition-free usage).
//
// Expected behavior:
// - loop(pos < 5) iterates 5 times with break condition on pos
// - Each iteration:
//   - local offset = pos - 0 (body-local init: always equals pos)
//   - if pos >= 3 { break } (condition uses pos, NOT offset)
//   - sum = sum + offset (use body-local in update)
//   - pos = pos + 1
// - Expected sum: 0 + (0-0) + (1-0) + (2-0) = 0+0+1+2 = 3

static box Main {
    main() {
        local sum = 0
        local pos = 0

        loop (pos < 5) {
            local offset = pos - 0  // Body-local init (Phase 186: BinOp)

            if pos >= 3 {  // Condition uses pos (loop var), NOT offset!
                break
            }

            sum = sum + offset  // Update uses offset (body-local)
            pos = pos + 1
        }

        print(sum)  // Expected: 3 (0+0+1+2)
        return sum
    }
}