Commits on Jul 20, 2020

1. Fix an infinite loop error for Style/EmptyMethod …

   This PR fixes the following infinite loop error for `Style/EmptyMethod`.
   
   ```ruby
   % cat example.rb
   def foo(arg
       ); end
   ```
   
   ## Before
   
   The following error occurs without auto-correction.
   
   ```console
   % bundle exec rubocop --only Style/EmptyMethod -a example.rb
   (snip)
   
   Offenses:
   
   example.rb:1:1: C: [Corrected] Style/EmptyMethod: Put empty method
   definitions on a single line.
   def foo(arg ...
   ^^^^^^^^^^^^
   
   0 files inspected, 1 offense detected, 1 offense corrected
   Infinite loop detected in
   /Users/koic/src/github.com/koic/rubocop-issues/empty_method/example.rb.
   /Users/koic/src/github.com/rubocop-hq/rubocop/lib/rubocop/runner.rb:288:in `check_for_infinite_loop'
   /Users/koic/src/github.com/rubocop-hq/rubocop/lib/rubocop/runner.rb:271:in `block in iterate_until_no_changes'
   /Users/koic/src/github.com/rubocop-hq/rubocop/lib/rubocop/runner.rb:270:in `loop'
   /Users/koic/src/github.com/rubocop-hq/rubocop/lib/rubocop/runner.rb:270:in `iterate_until_no_changes'
   /Users/koic/src/github.com/rubocop-hq/rubocop/lib/rubocop/runner.rb:241:in `do_inspection_loop'
   (snip)
   
   % cat example.rb
   def foo(arg
       ); end
   ```
   
   ## After
   
   Auto-corrects without any error.
   
   ```console
   % bundle exec rubocop --only Style/EmptyMethod -a example.rb
   (snip)
   
   Offenses:
   
   example.rb:1:1: C: [Corrected] Style/EmptyMethod: Put empty method
   definitions on a single line.
   def foo(arg ...
   ^^^^^^^^^^^^
   
   1 file inspected, 1 offense detected, 1 offense corrected
   
   % cat example.rb
   def foo(arg); end
   ```

   

   koic committed Jul 20, 2020
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