https://git.ruby-lang.org/ruby.git/commit/?id=4178cbd297

From 4178cbd2974fc0022823392c2460e09df2517a6e Mon Sep 17 00:00:00 2001
From: Yuki Nishijima <yk.nishijima@g...>
Date: Sat, 6 Jun 2020 14:13:19 -0400
Subject: Remove experimental feaures and related code completely

Original pull request: https://github.com/ruby/did_you_mean/pull/147

diff --git a/lib/did_you_mean/experimental/initializer_name_correction.rb b/lib/did_you_mean/experimental/initializer_name_correction.rb
deleted file mode 100644
index b59c98e..0000000
--- a/lib/did_you_mean/experimental/initializer_name_correction.rb
+++ /dev/null
@@ -1,20 +0,0 @@ https://github.com/ruby/ruby/blob/trunk/#L0
-# frozen-string-literal: true
-
-require_relative '../levenshtein'
-
-module DidYouMean
-  module Experimental
-    module InitializerNameCorrection
-      def method_added(name)
-        super
-
-        distance = Levenshtein.distance(name.to_s, 'initialize')
-        if distance != 0 && distance <= 2
-          warn "warning: #{name} might be misspelled, perhaps you meant initialize?"
-        end
-      end
-    end
-
-    ::Class.prepend(InitializerNameCorrection)
-  end
-end
diff --git a/lib/did_you_mean/experimental/ivar_name_correction.rb b/lib/did_you_mean/experimental/ivar_name_correction.rb
deleted file mode 100644
index 7b97ff4..0000000
--- a/lib/did_you_mean/experimental/ivar_name_correction.rb
+++ /dev/null
@@ -1,65 +0,0 @@ https://github.com/ruby/ruby/blob/trunk/#L0
-# frozen-string-literal: true
-
-require_relative '../../did_you_mean/spell_checker'
-require_relative '../../did_you_mean/spell_checkers/method_name_checker'
-
-module DidYouMean
-  module Experimental #:nodoc:
-    class IvarNameChecker < ::DidYouMean::MethodNameChecker #:nodoc:
-      REPLS = {
-        "(irb)" => -> { Readline::HISTORY.to_a.last }
-      }
-
-      TRACE = TracePoint.trace(:raise) do |tp|
-        e = tp.raised_exception
-
-        if SPELL_CHECKERS.include?(e.class.to_s) && !e.instance_variable_defined?(:@frame_binding)
-          e.instance_variable_set(:@frame_binding, tp.binding)
-        end
-      end
-
-      attr_reader :location, :ivar_names
-
-      def initialize(no_method_error)
-        super(no_method_error)
-
-        @location   = no_method_error.backtrace_locations.first
-        @ivar_names = no_method_error.frame_binding.receiver.instance_variables
-
-        no_method_error.remove_instance_variable(:@frame_binding)
-      end
-
-      def corrections
-        super + ivar_name_corrections
-      end
-
-      def ivar_name_corrections
-        @ivar_name_corrections ||= SpellChecker.new(dictionary: ivar_names).correct(receiver_name.to_s)
-      end
-
-      private
-
-      def receiver_name
-        return unless receiver.nil?
-
-        abs_path = location.absolute_path
-        lineno   = location.lineno
-
-        /@(\w+)*\.#{method_name}/ =~ line(abs_path, lineno).to_s && $1
-      end
-
-      def line(abs_path, lineno)
-        if REPLS[abs_path]
-          REPLS[abs_path].call
-        elsif File.exist?(abs_path)
-          File.open(abs_path) do |file|
-            file.detect { file.lineno == lineno }
-          end
-        end
-      end
-    end
-  end
-
-  NoMethodError.send(:attr, :frame_binding)
-  SPELL_CHECKERS['NoMethodError'] = Experimental::IvarNameChecker
-end
-- 
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