[llvm] [bindings] Add OCaml binding to `LLVMGlobalSetMetadata` (PR #131583)

[via llvm-commits]

alan-j-hu wrote:

Looks like commit 6b47bba44087caa7d4805bdb3229153a3bfba7a5, the last commit on main, has the debuginfo test failure.

Commit d8b2e432d633e175a87e8fbc00e0f7a627ac4c9e, the last commit to directly touch the LLVM bindings, does not have the debuginfo test failure.

Commit a5fb2bbb2ad8488482843e2298fbe6f6a1d45bbd, the last commit to directly touch the LLVM debuginfo bindings, does not have the debuginfo test failure.

So, it looks like the debuginfo test failure was introduced somewhere in-between commit d8b2e432d633e175a87e8fbc00e0f7a627ac4c9e and commit 6b47bba44087caa7d4805bdb3229153a3bfba7a5, in code that did not touch the OCaml bindings.

https://github.com/llvm/llvm-project/pull/131583