[clang-tools-extra] Add clang tidy check performance constexpr non static in scope (PR #147809)

[Victor Chernyakin via cfe-commits]

================
@@ -0,0 +1,45 @@
+//===--- ConstexprNonStaticInScopeCheck.cpp - clang-tidy ------------------===//
----------------
localspook wrote:

We’ve switched to a new file header style:
```suggestion
//===----------------------------------------------------------------------===//
```


https://github.com/llvm/llvm-project/pull/147809