"macro expansion ignores" error should explain why

[kmcallister]

afaik, it's because the context where you're using the macro (expr, item, etc.) stopped parsing before that token. We should mention that context.

[wesleywiser]

Is this fixed? I think this was fixed the referenced pull request.

[jonas-schievink]

I'd prefer a message like the use of X is likely invalid in this {statement, expression, pattern, ...} context