[llvm] [GlobalISel][IRTranslator] Lower ptr/non-ptr bitcasts via G_INTTOPTR/G_PTRTOINT (PR #203335)

[Petar Avramovic via llvm-commits]

https://github.com/petar-avramovic commented:

I don't really understand intended workflow here, you were originally translating bitcast to intoptr? why not translate it to bitcast and legalize, it is a irtranslator after all, not `LLT legalizer`

https://github.com/llvm/llvm-project/pull/203335