[clang] [llvm] [PowerPC][AIX] Support #pragma comment copyright for AIX (PR #178184)

[Tony Varghese via cfe-commits]

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@@ -1358,6 +1358,10 @@ def err_pragma_comment_unknown_kind : Error<"unknown kind of pragma comment">;
 // PS4 recognizes only #pragma comment(lib)
 def warn_pragma_comment_ignored : Warning<"'#pragma comment %0' ignored">,
   InGroup<IgnoredPragmas>;
+def warn_pragma_comment_once
+    : Warning<"'#pragma comment %0' "
+              "can be specified only once per translation unit - ignored">,
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tonykuttai wrote:

done

https://github.com/llvm/llvm-project/pull/178184