Issue #12395 has been updated by Ross Cameron.


Correct. Sorry about that.



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Bug #12395: Class descendant_types  ruby2.3.0, ruby 2.3.1
https://bugs.ruby-lang.org/issues/12395#change-58761

* Author: Ross Cameron
* Status: Feedback
* Priority: Normal
* Assignee: 
* ruby -v: 2.3.0, 2.3.1
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
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descendant_types method call on any class results in the following error message:

TypeError::can't create instance of singleton class

Problem does not exist in ruby-2.2.2



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