[clang] [Clang] Add -Wcounted-by-addrof to warn when &fam discards __counted_by (PR #206760)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
git-clang-format --diff origin/main HEAD --extensions c,cpp -- clang/test/Sema/warn-counted-by-addrof.c clang/lib/Sema/SemaChecking.cpp --diff_from_common_commit
``````````

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The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 2c21e11fc..e643f5edf 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -3092,8 +3092,8 @@ static void DiagnoseCountedByAddrOfDynamicObjectSize(Sema &S,
     return;
 
   // The pointer argument must be the address of an lvalue: '&<expr>'.
-  const auto *UO = dyn_cast<UnaryOperator>(
-      Call->getArg(0)->IgnoreParenImpCasts());
+  const auto *UO =
+      dyn_cast<UnaryOperator>(Call->getArg(0)->IgnoreParenImpCasts());
   if (!UO || UO->getOpcode() != UO_AddrOf)
     return;
 

``````````

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https://github.com/llvm/llvm-project/pull/206760