[Fix #10592] Fix infinite loop on Style/MultilineTernaryOperator

[nobuyo]

…if using assignment method and condition/branch is multiline.

Fixes #10592.

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[nobuyo]

This doesn't solve the case of other assignment-based methods...

class Test
  def value=(value)
    @value = value
  end
end

test = Test.new
test.value = a ==
  b ? c : d

[nobuyo]

All assignment methods are now supported by d5f4105be2298805eb204beb08ae9155abc8ce19.

[koic]

Thanks! Incidentally, for some reason your PRs don't trigger CircleCI. If you like, please contact CircleCI :-)

[nobuyo]

Thank you, I will give it a try. I was actually just wondering why CircleCI wouldn't start only my PR 😅