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

[Baranov Victor via cfe-commits]

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@@ -0,0 +1,50 @@
+//==-- AvoidPlatformSpecificFundamentalTypesCheck.h - clang-tidy -*- C++ -*-==//
+//
+// 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
+//
+//==------------------------------------------------------------------------==//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PORTABILITY_AVOIDPLATFORMSPECIFICFUNDAMENTALTYPESCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PORTABILITY_AVOIDPLATFORMSPECIFICFUNDAMENTALTYPESCHECK_H
+
+#include "../ClangTidyCheck.h"
+#include "../utils/IncludeInserter.h"
+
+namespace clang::tidy::portability {
+
+/// Find fundamental platform-dependent types and recommend using typedefs or
+/// fixed-width types.
+///
+/// Detects fundamental types (int, short, long, long long, char, float, etc)
+/// and warns against their use due to platform-dependent behavior.
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vbvictor wrote:

This description should be the same as in `ReleaseNotes.rst`

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