[clang] [clang] Fix loss of `dllexport` for exported template specialization (PR #93302)

[Andrew Ng via cfe-commits]

nga888 wrote:

> > shouldn't there be a test case added for the dropping of dllexport?
> 
> I can't think of a test case that would hit it.

Just for clarification, you want to pursue the `getMostRecentDecl()` approach but keep the code for the dropping of `dllexport` even though there appears to be no test case that would/can exercise this code?


https://github.com/llvm/llvm-project/pull/93302