nobu	2018-04-03 19:50:47 +0900 (Tue, 03 Apr 2018)

  New Revision: 63075

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63075

  Log:
    Reproducible test for [Feature#14370] @ [Bug #14660]

  Modified files:
    trunk/KNOWNBUGS.rb
Index: KNOWNBUGS.rb
===================================================================
--- KNOWNBUGS.rb	(revision 63074)
+++ KNOWNBUGS.rb	(revision 63075)
@@ -5,3 +5,25 @@ https://github.com/ruby/ruby/blob/trunk/KNOWNBUGS.rb#L5
 # This test file includes tests which point out known bugs.
 # So all tests will cause failure.
 #
+assert_normal_exit("#{<<~"begin;"}\n#{<<~'end;#1'}", timeout: 5)
+begin;
+  str = "#{<<~"begin;"}\n#{<<~'end;'}"
+  begin;
+    class P
+      def p; end
+      def q; end
+      E = ""
+      N = "#{E}"
+      attr_reader :i
+      undef p
+      undef q
+      remove_const :E
+      remove_const :N
+    end
+  end;
+  iseq = RubyVM::InstructionSequence.compile(str)
+  100.times {|i|
+    bin = iseq.to_binary
+    RubyVM::InstructionSequence.load_from_binary(bin).eval
+  }
+end;#1

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