[ruby-core:123274] [Ruby Bug#21313] `it` in rescue/ensure on prism

Issue #21313 has been updated by k0kubun (Takashi Kokubun).

Backport changed from 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: REQUIRED to 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: DONE

ruby_3_4 commit:1f6d845011cf8900c0e9c6fe5e4243a63a5ecae3.

----------------------------------------
Bug #21313: `it` in rescue/ensure on prism
https://bugs.ruby-lang.org/issues/21313#change-114641

* Author: ko1 (Koichi Sasada)
* Status: Closed
* Assignee: prism
* ruby -v: "ruby 3.4.1 (2024-12-25 revision 48d4efcb85) +PRISM [wasm32-wasi]"
* Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: DONE
----------------------------------------
```ruby
1.times do
  raise
rescue
  p it
  #=> prism: false
  #=> parse.y: 0
end
```

`it` should return 0, shouldn't it?

demo:

parse.y: https://ruby.github.io/play-ruby/?code=p+RUBY_DESCRIPTION%0A%0A1.times+do%0A++raise%0Arescue%0A++p+it%0Aend%0A&options=%7B%22arguments%22%3A%5B%22--parser%3Dparse.y%22%5D%2C%22env%22%3A%7B%7D%7D

prism: https://ruby.github.io/play-ruby/?code=p+RUBY_DESCRIPTION%0A%0A1.times+do%0A++raise%0Arescue%0A++p+it%0Aend%0A&options=%7B%22arguments%22%3A%5B%5D%2C%22env%22%3A%7B%7D%7D

Same on `ensure`.

```ruby
1.times do
  raise
ensure
  p it #=> prism: false
       #=> parse.y: 0
end
```

```ruby
1.times do
  begin
    raise
  ensure
    p it #=> prism: false
         #=> parse.y: 0
  end
end
```




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