[clang-tools-extra] Add refactoring tool to convert between ternary (?:) expressions and equivalent if/else statements (PR #166822)

[via cfe-commits]

================
@@ -1,4 +1,5 @@
-//===--- ConditionalToIfCheck.cpp - clang-tidy -------------------*- C++ -*-===//
+//===--- ConditionalToIfCheck.cpp - clang-tidy -------------------*- C++
+//-*-===//
----------------
EugeneZelenko wrote:

```suggestion
//===----------------------------------------------------------------------===//
```

Emacs stuff was removed (at least from Clang-Tidy code) recently. Same for other file.

https://github.com/llvm/llvm-project/pull/166822