Added crash - 22523 - LLVM SimplifyCFGOpt

- This was discovered in https://github.com/DaveWoodCom/XCGLogger/
- See issues
    - https://github.com/DaveWoodCom/XCGLogger/issues/10
    - https://github.com/DaveWoodCom/XCGLogger/issues/17
    - https://github.com/DaveWoodCom/XCGLogger/issues/26
- Occurs when optimization level is set to `Fastest [-O]`
- The test case is as compact as I could get it (from the original large source file). Has the exact same stack trace
- Looks unique based on the stack trace (though my grep’s of the stack trace dir were basic, so I might have missed something)