964a832702
Remove using `swap()` which was using VLA and replace it with `byteswp()`. Reduce the scope of local variables in `heapify_up/down` to the smallest necessary block. Replace `while(true)` loop in `heapify_down()` with a bounded `for` loop. Signed-off-by: Sayooj K Karun <sayooj@aerlync.com>