[clang] [clang-tools-extra] [clang-tidy] Add portability-avoid-platform-specific-fundamental-types (PR #146970)

[via cfe-commits]

================
@@ -0,0 +1,47 @@
+//==-- AvoidPlatformSpecificFundamentalTypesCheck.h - clang-tidy -*- C++ -*-==//
----------------
EugeneZelenko wrote:

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

https://github.com/llvm/llvm-project/pull/146970