Fix "::::" appearing in module_path!() #19262
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src/libsyntax/ext/expand.rs
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Shouldn't the mod_pop underneath this also be conditional? (is this why the unwrap above was removed?)
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Yes, that's why the unwrap was removed. I suppose they could both be conditional. I was thinking a pop function returning an Option (and letting the caller deal with it) instead of unwrapping it made some sense, but now I realize that mod_pop doesn't return anything. This function is the only place mod_push and mod_pop are used, so it's not breaking any code elsewhere. Still, I can make the change for the sake of it making more sense at a glance.
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Closes #18859