Auto merge of #9424 - mikerite:fix-9351-4, r=xFrednet

Fix `unnecessary_to_owned` false positive

Fixes #9351.

Note that this commit reworks that fix for #9317. The change
is to check that the type implements `AsRef<str>` before regarding
`to_string` as an equivalent of `to_owned`. This was suggested
by Jarcho in the #9317 issue comments.

The benefit of this is that it moves some complexity out of
`check_other_call_arg` and simplifies the module as a whole.

changelog: FP: [`unnecessary_to_owned`]: No longer lints, if type change would cause errors in the caller function

0 files changed, 0 insertions, 0 deletions