[ruby-core:114672] [Ruby master Bug#19788] Ripper returns a symbol instead of a token as operator for "::"

Issue #19788 has been updated by nagachika (Tomoyuki Chikanaga).

Backport changed from 3.0: REQUIRED, 3.1: DONE, 3.2: REQUIRED to 3.0: REQUIRED, 3.1: DONE, 3.2: DONE

ruby_3_2 bb877e5b4fe81965af60a0d86daeb8ed477e8e87 merged revision(s) 382678d4112f4afc6272244c22924d2b004274b1.

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Bug #19788: Ripper returns a symbol instead of a token as operator for "::"
https://bugs.ruby-lang.org/issues/19788#change-104503

* Author: thyresias (Thierry Lambert)
* Status: Closed
* Priority: Normal
* ruby -v: ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x64-mingw-ucrt]
* Backport: 3.0: REQUIRED, 3.1: DONE, 3.2: DONE
----------------------------------------
```ruby
require 'ripper'

class BasicParser < Ripper
  EVENTS.each do |event|
    module_eval(<<~RUBY, __FILE__, __LINE__ + 1)
      def on_#{event}(*args)
        puts "#{event}(\#{args.inspect})"
        args.unshift :#{event}
        args
      end
    RUBY
  end
end

require 'pp'

BasicParser.new('a&.b').parse
# in stdout:
# ident(["a"])
# op(["&."])
# vcall([[:ident, "a"]])
# ident(["b"])
# call([[:vcall, [:ident, "a"]], [:op, "&."], [:ident, "b"]])

BasicParser.new('a::b').parse
# in stdout:
# ident(["a"])
# op(["::"])
# vcall([[:ident, "a"]])
# ident(["b"])
# call([[:vcall, [:ident, "a"]], :"::", [:ident, "b"]])
```

On the last line, consistent with `&.`, I would have expected:
```ruby
# call([[:vcall, [:ident, "a"]], [:op, "::"], [:ident, "b"]])
```

This is true for the "operator" argument of `call`, `command_call` and `field`.
Is it intended?



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