[ruby/stringio] Remove special handling of chilled strings
[Feature #20205]
Followup: https://github.com/ruby/stringio/pull/94
They no longer need to be special cases. If StringIO end up mutating a chilled string, a warning will be emitted.
https://github.com/ruby/stringio/commit/dc62d65449
[ruby/stringio] Remove special handling of chilled strings
[Feature #20205]
Followup: https://github.com/ruby/stringio/pull/94
They no longer need to be special cases. If StringIO end up
mutating a chilled string, a warning will be emitted.
https://github.com/ruby/stringio/commit/dc62d65449