Function fault_crate_swap::self_swap_handler

pub fn self_swap_handler(crate_name: &str) -> Result<SwapRanges, String>

This function calls the crate swapping routine for a corrupted crate (referred to as self swap) Swapping a crate with a new copy of object file includes following steps in high level

1. Call generic crate swapping routine with self_swap = true
2. Change the calues in the stack to the reloaded crate
3. Change any other references in the heap to the reloaded crate This function handles 1 and 2 operations and 3 is handled in the call site depending on necessity