cfg[feature] is removed when feature name is too long #4783
Description
Input
pub(crate) fn f(
#[cfg(feature = "this_feature_name_is_long_enough_not_to_fit_inside_the_standard_limit")] x: u64,
) -> () {}
Output
pub(crate) fn f(x: u64) -> () {}
Please note that the behaviour is the same where argument is actually used. I removed its usage just for simplicity.
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