[llvm] [lld] [LLD] [COFF] Add tests to observe details about LTO and __imp_ prefixes. NFC. (PR #72764)

[Fangrui Song via llvm-commits]

MaskRay wrote:

This lacks a test for an `__imp_` alias to a data symbol (LLVM global variable), right? It seems useful to add one, even if the behavior is the same as a function symbol, as at the object file format level there is some nuance.

https://github.com/llvm/llvm-project/pull/72764