[clang] [CIR] floating-point, pointer, and function types (PR #120484)

[Bruno Cardoso Lopes via cfe-commits]

bcardosolopes wrote:

@keryell 

> How to up-stream some changes which are cross-project like https://github.com/llvm/clangir/pull/1203 which introduces a new MLIR parser/pretty-printer feature like:

My bad here, we usually don't accept such changes and I missed that during review time. ClangIR policy to changes outside CIR is to upstream them to MLIR and after that's done we cherry-pick it to the incubator (so rebases are smooth). I'll have to revert your change, sorry for the churn!

https://github.com/llvm/llvm-project/pull/120484