fix(tvix/eval): don't impl From<NixString> for String r/7991

This caught me by accident in an earlier revision of cl/11500 -
I had a `NixString`, wanted to return it as a `String`, so I was naively
calling `s.into()`.

That unfortunately gave me the `Display` implementation of `NixString`,
which quotes strings, causing an annoying error further up the stack.

NixStrings are bytes, we can keep the impl From<NixString> for BString,
but having a `.into()` suddenly do quoting is more than unexpected.

Change-Id: I5434ba94bfe6c493d0a57e68225ecc22daa4b948
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11505
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI

0 files changed, 0 insertions, 0 deletions