[clang] [CIR][AArch64] add vshr_* builtins (PR #186693)

[Andrzej Warzyński via cfe-commits]

================
@@ -849,6 +912,7 @@ static mlir::Value emitCommonNeonBuiltinExpr(
 
   // Determine the type of this overloaded NEON intrinsic.
   NeonTypeFlags neonType(neonTypeConst->getZExtValue());
+  bool isUnsigned = neonType.isUnsigned();
----------------
banach-space wrote:

```suggestion
const  bool isUnsigned = neonType.isUnsigned();
```

https://github.com/llvm/llvm-project/pull/186693