[ruby-core:112512] [Ruby master Feature#19450] Is there an official way to set a class name without setting a constant?

Issue #19450 has been updated by zverok (Victor Shepelev).


Just an aside note: ActiveRecord models [redefine](https://github.com/rails/rails/blob/main/activerecord/lib/active_record/core.rb#L357) `#inspect` (and not `#name`) to achieve "informative description" effect:
```ruby
p User
User(id: integer, email: citext, name: string, time_zone: string, ...)
```

For me, it seems more reasonable than redefining `#name` (like, `Class#name` has an implicit contract of "being reachable by the name, considered as a name of a constant containing the class).

----------------------------------------
Feature #19450: Is there an official way to set a class name without setting a constant?
https://bugs.ruby-lang.org/issues/19450#change-101957

* Author: ioquatix (Samuel Williams)
* Status: Open
* Priority: Normal
----------------------------------------
This is the best I could come up with:

```ruby
klass = Class.new

Object.const_set("Klass", klass)
Object.send(:remove_const, "Klass")

puts klass.new
# => #<Klass:0x0000000100a9d688>
```

Can we do better?

What about something like:

```ruby
Class.new(name: "Klass")
```

or

```ruby
Class.new do
  def self.name
    "Klass"
  end
end
```

etc



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