[llvm-branch-commits] [clang] release/20.x: [modules] Handle friend function that was a definition but became only a declaration during AST deserialization (#132214) (PR #134232)

[Nikita Popov via llvm-branch-commits]

nikic wrote:

> @nikic what do you mean by ABI change in this case? It doesn't change ABI of generated code, moreover it doesn't even change PCM serialized format because it is in memory only filed and attribute.

It changes the ABI of libclang-cpp, by changing the layout of an exported type.

https://github.com/llvm/llvm-project/pull/134232