Issue #13005 has been reported by Josh Cheek.

----------------------------------------
Bug #13005: Inline rescue is inconsistent when rescuing NoMethodError
https://bugs.ruby-lang.org/issues/13005

* Author: Josh Cheek
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.4.0dev (2016-11-16 trunk 56815) [x86_64-darwin15]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
```ruby
o = "some object"

class << o
  private
  attr_accessor :a
end

# GETTER can be rescued in a begin-block or inline
begin   o.a     
rescue; $!.class        # => NoMethodError
end
o.a rescue $!.class     # => NoMethodError

# SETTER can be rescued in a begin-block but NOT inline!
begin   o.a = 1
rescue; $!.class        # => NoMethodError
end
o.a = 1 rescue $!.class

# ~> NoMethodError
# ~> private method `a=' called for "some object":String
# ~> Did you mean?  a
# ~>
# ~> program.rb:18:in `<main>'
```



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