[clang-tools-extra] [clang-tidy] Add IgnoredRegex to 'bugprone-suspicious-include' (PR #160958)

[Björn Schäpers via cfe-commits]

================
@@ -14,3 +14,12 @@ Examples:
   #include "Pterodactyl.h"    // OK, .h files tend not to have definitions.
   #include "Velociraptor.cpp" // Warning, filename is suspicious.
   #include_next <stdio.c>     // Warning, filename is suspicious.
+
+Options
+-------
+
+.. option::  IgnoredRegex
+
+   A regular expression for the file name to be ignored by the check. Default
+   is no regular expression.
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HazardyKnusperkeks wrote:

For the protocol: I still think this is wrong, but okay.

https://github.com/llvm/llvm-project/pull/160958