https://git.ruby-lang.org/ruby.git/commit/?id=c8b675adb9

From c8b675adb902a67bf62a1a9945bade7c8becc4e8 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 21 Apr 2019 05:48:35 +0000
Subject: suppress redefinition warnings

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67679 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

diff --git a/lib/irb/workspace.rb b/lib/irb/workspace.rb
index bee59b9..28a0bbe 100644
--- a/lib/irb/workspace.rb
+++ b/lib/irb/workspace.rb
@@ -49,7 +49,7 @@ EOF https://github.com/ruby/ruby/blob/trunk/lib/irb/workspace.rb#L49
           @binding = BINDING_QUEUE.pop
 
         when 3	# binding in function on TOPLEVEL_BINDING(default)
-          @binding = eval("def irb_binding; private; binding; end; irb_binding",
+          @binding = eval("self.class.remove_method(:irb_binding) if defined?(irb_binding); def irb_binding; private; binding; end; irb_binding",
                           TOPLEVEL_BINDING,
                           __FILE__,
                           __LINE__ - 3)
-- 
cgit v0.10.2


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