[clang-tools-extra] [clang-tidy] introduce a unused local non trival variable check (PR #76101)

[Piotr Zegar via cfe-commits]

================
@@ -0,0 +1,91 @@
+// RUN: %check_clang_tidy -std=c++17 %s bugprone-unused-local-non-trivial-variable %t -- \
----------------
PiotrZSL wrote:

use -std=c++17-or-later

https://github.com/llvm/llvm-project/pull/76101