[clang] [clang-tidy]Add new check bugprone-casting-through-void (PR #69465)

[Piotr Zegar via cfe-commits]

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@@ -2732,6 +2732,16 @@ extern const internal::VariadicDynCastAllOfMatcher<Stmt, CastExpr> castExpr;
 extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXFunctionalCastExpr>
     cxxFunctionalCastExpr;
 
+/// Matches a builtin bit cast expression.
+///
+/// Example: Matches __builtin_bit_cast(double, i) in
+/// \code
+///   int64_t i = 100;
+///   double d = __builtin_bit_cast(double, i);
+/// \endcode
+extern const internal::VariadicDynCastAllOfMatcher<Stmt, BuiltinBitCastExpr>
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PiotrZSL wrote:

if you add this thing here then, documentation for matchers need to be udpated, UT need to be created and this matcher need to be registred  so it would be visible in clang-query. And release notes for clang need to be updated to mention new matcher.

https://github.com/llvm/llvm-project/pull/69465