This test needs to be checked for correctness.

```
$ ./crash-38-x64-cast-ty-argument-of-incompatible-type
/path/to/llvm/include/llvm/Support/Casting.h:230: typename llvm::cast_retty<To, From>::ret_type llvm::cast(Y&) [with X = llvm::MCSectionELF; Y = llvm::MCSection; typename llvm::cast_retty<To, From>::ret_type = llvm::MCSectionELF&]: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
Aborted
```

* Add crash-36-x64-execution-aborted.c
* Add crash-37-x64-segfault-in-doit.c

 blx thumb bug #166