[llvm-branch-commits] [lld] [llvm] Backport fixes for ARM64EC import libraries (PR #84590)

[Eli Friedman via llvm-branch-commits]

efriedma-quic wrote:

This seems like a pretty big change to backport... how useful is it in practice?  I was under the impression that arm64ec lld support is still immature... and if you're using the MSVC linker, you might as well use the MSVC lib/dlltool.

https://github.com/llvm/llvm-project/pull/84590