[clang] [Parser][BoundsSafety] Print attribute as macro if it's system defined (PR #107619)

[Aaron Ballman via cfe-commits]

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@@ -0,0 +1,22 @@
+// RUN: %clang_cc1 -I%S/Inputs -fsyntax-only -triple x86_64-linux-gnu %s 2>&1 | FileCheck %s
+
+#include <macro_defined_type.h>
+
+// The diagnostic message is hard-coded as 'noderef' so using a system macro doesn't change the behavior
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AaronBallman wrote:

This seems like it's going to be a confusing user experience because sometimes the user will see `noderef` and other times they may see `_SYS_NODEREF`. Maybe we should make a second pass an update hard-coded names (perhaps as a follow-up)?

https://github.com/llvm/llvm-project/pull/107619