[llvm] Reland "[AArch64][SME] Split SMECallAttrs out of SMEAttrs" (PR #138671)

[Sander de Smalen via llvm-commits]

================
@@ -8636,6 +8636,16 @@ static void analyzeCallOperands(const AArch64TargetLowering &TLI,
   }
 }
 
+static SMECallAttrs
+getSMECallAttrs(const Function &Function,
+                const TargetLowering::CallLoweringInfo &CLI) {
----------------
sdesmalen-arm wrote:

Can you rename `Function` to `Caller` to make it clear what its meaning is?

https://github.com/llvm/llvm-project/pull/138671