gh-139353: Split unicodeobject.c into smaller files

[vstinner]

Create files:

• Objects/unicode_codecs.c
• Objects/unicode_codecs_utf.c
• Objects/unicode_codecs_win.c
• Objects/unicode_convert.c
• Objects/unicode_format.c
• Objects/unicode_fromformat.c
• Objects/unicode_iter.c
• Objects/unicode_methods.c
• Objects/unicode_module.c
• Objects/unicode_writer.c

• Issue: Split large Objects/unicodeobject.c file into smaller files #139353

[vstinner]

Line numbers:

$ wc -l Objects/unicode*.c|sort -n
   209 Objects/unicode_iter.c
   287 Objects/unicodectype.c
   575 Objects/unicode_module.c
   657 Objects/unicode_fromformat.c
   688 Objects/unicode_writer.c
   809 Objects/unicode_codecs_win.c
   835 Objects/unicode_convert.c
   949 Objects/unicode_format.c
  2171 Objects/unicode_codecs_utf.c
  3179 Objects/unicode_methods.c
  3239 Objects/unicode_codecs.c
  3561 Objects/unicodeobject.c
 17159 total

[picnixz]

To ease navigation, can we use codecs_utf instead? that way, the file will be close to codecs.c

[picnixz]

For all new files, can we perhaps automatically apply some formatter? it would be a good practice to enforce a consistent style (unless you want people to be able to check the diff with part of the file).

I would however suggest that we still apply some post-formatting after the refactorization.

[vstinner]

To ease navigation, can we use codecs_utf instead? that way, the file will be close to codecs.c

Ok, I renamed the file.

For all new files, can we perhaps automatically apply some formatter? it would be a good practice to enforce a consistent style (unless you want people to be able to check the diff with part of the file).

I would prefer to limit changes, only move code, to help Git to get the history.

[vstinner]

I closed/reopened the PR to trigger again CI jobs.

[vstinner]

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I don't know why these 3 CIs are blocked :-(