Issue #416 has been updated by Tomoyuki Chikanaga.

Backport changed from 2.0.0: REQUIRED, 2.1: REQUIRED to 2.0.0: REQUIRED, 2.1: DONE

r45399, r45400, r46036 and r46037 were backported into `ruby_2_1` branch atr46628.



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Bug #416: core_set_method_alias
https://bugs.ruby-lang.org/issues/416#change-47489

* Author: Shyouhei Urabe
* Status: Closed
* Priority: Normal
* Assignee: Koichi Sasada
* Category: 
* Target version: 
* ruby -v: r17576
* Backport: 2.0.0: REQUIRED, 2.1: DONE
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バックトレースに`core_set_method_alias`という謎のメソッド名が出現することがあります
 
    % ~/target/trunk/bin/ruby -ve 'alias foo bar'
    ruby 1.9.0 (2008-08-11 revision 17576) [x86_64-linux]
    -e:1:in `core_set_method_alias': undefined method `bar' for class `Object' (NameError)
            from -e:1:in `<main>'





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