Expand Macro Recursively: don't append "!" to non-bang macro name #14468
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Apr 2, 2023
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When we run
Expand Macro Recursively, we prepend a comment "Recursive expansion of foo! macro" to the expansion result. I've noticed we unconditionally render the macro name with "!" and, while super subtle, I feel a bit awkward when the macro is either a derive or attribute macro.