[llvm] [OCaml] Remove test with invalid usage of #dbg_declare (PR #134508)

[via llvm-commits]

alan-j-hu wrote:

A considerable portion of this test file is written assuming an i32 parameter, so I can't change it to a ptr. Instead, I decided to add a second ptr parameter. I've added back the test code in question, except using #dbg_declare on the new ptr parameter instead of the i32 parameter.

https://github.com/llvm/llvm-project/pull/134508