Regression or undocumented behavior change in Rust value printing in gdb 10.1

[Tom Tromey]

Russell> I'm tracking this on the Rust side at
Russell> https://github.com/rust-lang/rust/issues/85267, and have a small repro
Russell> available at https://github.com/mullr/gdb-pretty-test.

Tom> Thanks.  I'll take a look.

I pushed a fix for this the other day.

Tom