[clang] [CIR] Add builtin operator new/delete (PR #168578)

[Henrich Lauko via cfe-commits]

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@@ -520,6 +521,13 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID,
     cir::PrefetchOp::create(builder, loc, address, locality, isWrite);
     return RValue::get(nullptr);
   }
+  case Builtin::BI__builtin_operator_new:
+    return emitNewOrDeleteBuiltinCall(
+        e->getCallee()->getType()->castAs<FunctionProtoType>(), e, false);
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xlauko wrote:

add comments `/*ParamName=*/` for boolean parameters

https://github.com/llvm/llvm-project/pull/168578