[clang-tools-extra] [clang-tidy] Apply DeMorgan to overloaded operator in the 'readability-simplify-boolean-expr' check (PR #164141)

[Yanzuo Liu via cfe-commits]

================
@@ -930,6 +950,17 @@ static bool flipDemorganSide(SmallVectorImpl<FixItHint> &Fixes,
       return flipDemorganBinaryOperator(Fixes, Ctx, BinOp, OuterBO, Paren);
     }
   }
+  if (const auto *OpCall = dyn_cast<CXXOperatorCallExpr>(E);
+      OpCall && OpCall->isInfixBinaryOp()) {
+    return flipDemorganOverloadedBinaryOperator(Fixes, Ctx, OpCall, OuterBO);
+  }
+  if (const auto *Paren = dyn_cast<ParenExpr>(E)) {
+    if (const auto *OpCall = dyn_cast<CXXOperatorCallExpr>(E);
----------------
zwuis wrote:

What's going on here? `E` is both `ParenExpr` and `CXXOperatorCallexpr`?

https://github.com/llvm/llvm-project/pull/164141