[clang-tools-extra] [clang-tidy] New bugprone-derived-method-shadowing-base-method (PR #154746)

[Victor Chernyakin via cfe-commits]

================
@@ -0,0 +1,127 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "DerivedMethodShadowingBaseMethodCheck.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
+#include <stack>
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::bugprone {
+
+namespace {
+
+bool sameBasicType(const ParmVarDecl *Lhs, const ParmVarDecl *Rhs) {
+  if (Lhs && Rhs) {
----------------
localspook wrote:

Are there cases where `.getParamDecl()` returns null pointers?

https://github.com/llvm/llvm-project/pull/154746