[ruby-core:111433] [Ruby master Bug#19260] ruby/spec is failed with Ruby 3.3

Issue #19260 has been updated by ko1 (Koichi Sasada).


https://github.com/ruby/ruby/actions/runs/3778576415/jobs/6423165914

ruby 3.3.0dev (2022-12-25T23:46:59Z master 2a6dbf03a2) [i686-linux-gnu]


```
  1)
  Literal Regexps handles a lookbehind with ss characters ERROR
  RegexpError: invalid pattern in look-behind: /(?<!dss)/i
  /home/runner/work/ruby/ruby/src/spec/ruby/language/regexp_spec.rb:120:in `block (3 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/language/regexp_spec.rb:4:in `<top (required)>'
  
  2)
  Integer#<< (with n << m) when m is a bignum or larger than int raises NoMemoryError when m > 0 and n != 0 ERROR
  Expected NoMemoryError
  but got: RangeError (shift width too big)
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/left_shift_spec.rb:203:in `<<'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/left_shift_spec.rb:203:in `block (6 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/left_shift_spec.rb:203:in `block (5 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/left_shift_spec.rb:202:in `each'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/left_shift_spec.rb:202:in `block (4 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/left_shift_spec.rb:3:in `<top (required)>'
  
  3)
  Encoding#replicate has been removed FAILED
  Expected #<Encoding:US-ASCII>.respond_to? :replicate, true
  to be falsy but was true
  /home/runner/work/ruby/ruby/src/spec/ruby/core/encoding/replicate_spec.rb:72:in `block (3 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/encoding/replicate_spec.rb:4:in `<top (required)>'
  
  4)
  Float#round does not lose precision during the rounding process FAILED
  Expected 767573.18758 to have same value and type as 767573.18759
  /home/runner/work/ruby/ruby/src/spec/ruby/core/float/round_spec.rb:148:in `block (3 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/float/round_spec.rb:3:in `<top (required)>'
  
  5)
  Integer#>> (with n >> m) when m is a bignum or larger than int raises NoMemoryError when m < 0 and n != 0 ERROR
  Expected NoMemoryError
  but got: RangeError (shift width too big)
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/right_shift_spec.rb:225:in `>>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/right_shift_spec.rb:225:in `block (6 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/right_shift_spec.rb:225:in `block (5 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/right_shift_spec.rb:224:in `each'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/right_shift_spec.rb:224:in `block (4 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/integer/right_shift_spec.rb:3:in `<top (required)>'
```

----------------------------------------
Bug #19260: ruby/spec is failed with Ruby 3.3
https://bugs.ruby-lang.org/issues/19260#change-100804

* Author: hsbt (Hiroshi SHIBATA)
* Status: Open
* Priority: Normal
* Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN
----------------------------------------
After bumping version, we got the some fails with ruby/spec.

https://github.com/ruby/ruby/actions/runs/3778576412/jobs/6423166914

```
  1)
  Literal Regexps handles a lookbehind with ss characters ERROR
  RegexpError: invalid pattern in look-behind: /(?<!dss)/i
  /home/runner/work/ruby/ruby/src/spec/ruby/language/regexp_spec.rb:120:in `block (3 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/language/regexp_spec.rb:4:in `<top (required)>'
  
  2)
  Float#round does not lose precision during the rounding process FAILED
  Expected 767573.18758 to have same value and type as 767573.18759
  /home/runner/work/ruby/ruby/src/spec/ruby/core/float/round_spec.rb:148:in `block (3 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/float/round_spec.rb:3:in `<top (required)>'
  
  3)
  Encoding#replicate has been removed FAILED
  Expected #<Encoding:US-ASCII>.respond_to? :replicate, true
  to be falsy but was true
  /home/runner/work/ruby/ruby/src/spec/ruby/core/encoding/replicate_spec.rb:72:in `block (3 levels) in <top (required)>'
  /home/runner/work/ruby/ruby/src/spec/ruby/core/encoding/replicate_spec.rb:4:in `<top (required)>'
```



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