Issue #15597 has been updated by Hanmac (Hans Mackowiak).


@nobu should we change what the #methods returns? or is that to much work?

----------------------------------------
Bug #15597: syscall not returning true from private_method_defined?
https://bugs.ruby-lang.org/issues/15597#change-76810

* Author: AaronLasseigne (Aaron Lasseigne)
* Status: Rejected
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
`syscode` is a private method on `Object` but when checked with `private_method_defined?` it returns `false`.

Ruby 2.6.1
```
irb(main):001:0> Object.new.private_methods.sort.select { |pm| !Object.private_method_defined?(pm) }
=> [:syscall]
```

Ruby 2.5.3
```
irb(main):001:0> Object.new.private_methods.sort.select { |pm| !Object.private_method_defined?(pm) }
=> []
```



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