[llvm] [LLVM] Create `lf_alias` nodes for `typedef` and `using` (PR #153936)

[Alexandre Ganea via llvm-commits]

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aganea wrote:

Please remove binary PDB. We usually don’t add binaries of any sort to the LLVM repo, unless we cannot generate them by our tooling.

https://github.com/llvm/llvm-project/pull/153936