[clang] [Clang][ARM][AArch64] Alway emit protection attributes for functions. (PR #82819)

[Nick Desaulniers via cfe-commits]

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@@ -1398,6 +1400,42 @@ class TargetInfo : public TransferrableTargetInfo,
       }
       llvm_unreachable("Unexpected SignReturnAddressKeyKind");
     }
+
+  public:
+    BranchProtectionInfo() = default;
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nickdesaulniers wrote:

Do we still need the default constructor, or no?

https://github.com/llvm/llvm-project/pull/82819