[lld] [LLD][ELF][AArch64] Add BTI Aware long branch thunks (PR #108989)

[Fangrui Song via llvm-commits]

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@@ -577,7 +616,11 @@ void AArch64ADRPThunk::writeLong(uint8_t *buf) {
       0x10, 0x02, 0x00, 0x91, // add  x16, x16, R_AARCH64_ADD_ABS_LO12_NC(Dest)
       0x00, 0x02, 0x1f, 0xd6, // br   x16
   };
-  uint64_t s = getAArch64ThunkDestVA(destination, addend);
+  // if mayNeedLandingPad is true then destination is an
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MaskRay wrote:

`// If`

https://github.com/llvm/llvm-project/pull/108989