Support cases where Module#constants has been redefined

[ksss]

rbs 3.3.0.pre.1

When analyzing the gem rouge with prototype runtime, an error occurs.
The cause is that the .constants method is overridden in rouge.

I fixed the issue by using the method of calling the Module#constants UnboundMethod.

repro

$ bundle exec rbs prototype runtime -r rouge Rouge::Lexers::Actionscript

before

/ruby/3.2.0/gems/rouge-4.1.1/lib/rouge/lexers/actionscript.rb:96:in `constants': wrong number of arguments (given 1, expected 0) (ArgumentError)

after

module Rouge
  module Lexers
    class Actionscript < ::Rouge::RegexLexer
      def self.builtins: () -> untyped

      def self.constants: () -> untyped

      def self.declarations: () -> untyped

      def self.keywords: () -> untyped

      def self.reserved: () -> untyped
    end
  end
end

[soutaro]

👍