[llvm] [llvm-objdump] Error with relevant message when adding invalid notes (PR #90458)

[James Henderson via llvm-commits]

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@@ -0,0 +1,34 @@
+## Verify that --add-section warns on invalid note sections.
+
+# Add [namesz, descsz, type, name, desc] for a build id.
+#
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jh7370 wrote:

I suggest providing a comment before each block of echose explaining the significance of each case (i.e. what's invalid about it).

Also, make sure to use `##` for the comment.

https://github.com/llvm/llvm-project/pull/90458