[clang] [AArch64][FMV] Enable PAuth and BTI hardening of resolver functions (PR #141573)

[Alexandros Lamprineas via cfe-commits]

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+// RUN: %clang_cc1 -triple aarch64-linux-gnu -mbranch-target-enforce -msign-return-address=all      -emit-llvm %s -o - | FileCheck --check-prefixes=CHECK,BTI-SIGNRA %s
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labrinea wrote:

Can we move this file under the AArch64 directory?

https://github.com/llvm/llvm-project/pull/141573