pub(crate) const BATCHED_ERROR_CAP: usize = 10;Expand description
Cap on the number of per-element failures listed in a batched vector
conversion error; the remainder is summarized as "and N more".
pub(crate) (rather than file-private) so crate::into_r_as’s
StorageCoerceError::Batched (#1097) shares the exact same cap instead of
drifting from the inbound BatchedErrors path.