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

[Reid Kleckner via llvm-commits]

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@@ -0,0 +1,14 @@
+// Build with clang -fno-rtti -g -O0 typedef.cpp
+// Built with clang (22+) because MSVC does not output lf_alias for typedefs
+
+void *__purecall = 0;
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rnk wrote:

LLVM tests cannot depend on Clang, they have to be able to run in isolation.

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