[clang] [analyzer] Suppress NewDeleteLeaks FP in protobuf code (PR #162124)

[Balazs Benics via cfe-commits]

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@@ -218,3 +218,37 @@ void caller() {
   (void)n;
 } // no-warning: No potential memory leak here, because that's been already reported.
 } // namespace symbol_reaper_lifetime
+
+// Check that we do not report false positives in automaticall generated
+// protobuf code that passes dynamically allocated memory to a certain function
+// named GetOwnedMessageInternal.
+namespace protobuf_leak {
+#include "Inputs/system-header-simulator-for-protobuf.h"
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steakhal wrote:

I'd just include this at the top, or create a separate test file.
Including into a namespace is pretty evil.

https://github.com/llvm/llvm-project/pull/162124