[llvm] [llvm-c] Add LLVMParseIRInContext2 (PR #174085)

[Tamir Duberstein via llvm-commits]

tamird wrote:

> Come to think of it, what is the policy for bumping the minimum version of OCaml? Right now, the README file in bindings/ocaml states the minimum version required is OCaml 4.00. In particular, if `protect` is used in the tests, using it would not impact the minimum version required for end users.

Regarding the policy: I don't know. Certainly I'd rather not do that here since it is likely to be controversial.

I agree that using protect wouldn't impact end users, I just chose the conservative option. Whatever you prefer, I'm happy to adopt.

https://github.com/llvm/llvm-project/pull/174085