[clang-tools-extra] [Clang-Tidy] Add google-runtime-float Clang-Tidy check (PR #156763)

[Baranov Victor via cfe-commits]

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@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// 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_GOOGLE_FLOATTYPESCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_FLOATTYPESCHECK_H
+
+#include "../ClangTidyCheck.h"
+
+namespace clang::tidy::google::runtime {
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vbvictor wrote:

```suggestion
namespace clang::tidy::google {
```
We generally use "clang::tidy::CHECK_CATEGORY" namespaces, no need to add more

https://github.com/llvm/llvm-project/pull/156763