Ruby

Bump the github-actions group across 2 directories with 4 updates

Bumps the github-actions group with 3 updates in the / directory: ruby/setup-ruby, actions/upload-artifact and taiki-e/install-action....

iseq.c: rb_estimate_iv_count handle no superclass

[Bug #21992]

When redefining BasicObject#initialize there's no super class to
access.

rb_gc_obj_optimal_size: don't enlarge small AR table hashes

Ref: https://github.com/ruby/ruby/pull/16653

Frozen hashes backed by AR tables can be smaller than 160B.

Update ruby-bench to update stackprof

Remove postponed job APIs deprecated for 2 years

Fixed the error message for ibf_load_builtin

ibf_load_ptr returns a pointer to the loaded data without a NUL
terminator. Like as the debug output above, the length of the loaded
data must explicitly specified.

[ruby/rubygems] Clarify the name and meaning of the first argument
to gem spec
(https://github.com/ruby/rubygems/pull/9476)

• GEMFILE sound like Bundler Gemfile but this is unrelated.

https://github.com/ruby/rubygems/commit/3e3addb8d2

Use box_ready for $&, $`, $', $+

These variables have rb_gvar_readonly_setter, so box_ready is sufficient.
Only $~ needs box_dynamic due to its custom match_setter.

Fix Box regexp match vars after non-match

Always allocate CDHASH in 80B slots

Up to size 8, rb_hash_new_with_size() will allocate a 160B
slot to fit a full ar_table.

But in the case of CDHASH, we immediately assign a custom hash
type, which trigger the conversion into an st_table, potentially...