[clang] [AArch64][PAC][clang][ELF] Support PAuth ABI compatibility tag (PR #85235)

[Daniil Kovalev via cfe-commits]

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@@ -0,0 +1,32 @@
+// Check that we can manually enable specific ptrauth features.
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kovdan01 wrote:

Thanks, see f3abb4897fb9cd56b00eb6344489bbc972c40c5b and 4fd37cf125c13982ae0b6eb7254404fa3def6df5

https://github.com/llvm/llvm-project/pull/85235