[clang] [CIR] Upstream TypeInfo attribute (PR #159426)

[Amr Hesham via cfe-commits]

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@@ -521,6 +522,20 @@ mlir::Value CIRAttrToValue::visitCirAttr(cir::GlobalViewAttr globalAttr) {
   llvm_unreachable("Expecting pointer or integer type for GlobalViewAttr");
 }
 
+// TypeInfoAttr visitor.
+mlir::Value CIRAttrToValue::visitCirAttr(cir::TypeInfoAttr typeinfoArr) {
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AmrDeveloper wrote:

Should we rename it to `typeInfo` or `typeInfoAttr` similar to other parameters in visitors?

https://github.com/llvm/llvm-project/pull/159426