Change Bindings::write() to take impl Write instead of &mut dyn Write
#3324
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…Write` Dynamic dispatch is not (always) needed here, and this way an owned `File` can trivially be moved into the function again like before without forcing a mutable borrow. Noting that `Write` is even implemented on `&File`, which can now be more easily passed without having it under `mut`.
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Noticed immediately after #3317 was merged:
Dynamic dispatch is not (always) needed here, and this way an owned
Filecan trivially be moved into the function again like before without forcing a mutable borrow. Noting thatWriteis even implemented on&File, which can now be more easily passed without having it undermut.