[llvm] [BOLT][AArch64] Handle OpNegateRAState to enable optimizing binaries with pac-ret hardening (PR #120064)

[Paschalis Mpeis via llvm-commits]

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@@ -0,0 +1,42 @@
+# RUN: llvm-mc -filetype=obj -triple aarch64-unknown-unknown %s -o %t.o
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paschalis-mpeis wrote:

Can you add short descriptions to this and the -incorrect variant lit tests?

https://github.com/llvm/llvm-project/pull/120064