[lld] [llvm] [lld][AArch64][Build Attributes] Add support for converting AArch64 Build Attributes to GNU Properties (PR #131990)

[via llvm-commits]

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+### This file replace .note.gnu.property with aarch64 build attributes in order to confirm
+### interoperability.
+
+# REQUIRES: aarch64
+# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t.o
+# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-pac1.s -o %t1.o
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sivan-shani wrote:

Yes, that is correct.
The input files are used also for other tests and I did not want to change them. 
For those new 2 tests, the main test file contain AArch64 Build attributes instead of GNU properties and this should be enough for testing.

https://github.com/llvm/llvm-project/pull/131990