[clang] [PAC] Add support for __ptrauth type qualifier (PR #100830)

[Anton Korobeynikov via cfe-commits]

================
@@ -956,6 +956,25 @@ def err_ptrauth_indirect_goto_addrlabel_arithmetic : Error<
   "%select{subtraction|addition}0 of address-of-label expressions is not "
   "supported with ptrauth indirect gotos">;
 
+// __ptrauth qualifier
+def err_ptrauth_qualifier_invalid : Error<
+  "%select{return types|parameter types|properties}2 may not be qualified with %select{__ptrauth|__ptrauth_restricted_intptr}1; type is %0">;
----------------
asl wrote:

ditto

https://github.com/llvm/llvm-project/pull/100830