```ruby
require_relative '../../spec_helper'
require 'English'

describe "alias keyword" do
  it "aliases $ERROR_INFO to $! in English and $ERROR_INFO still returns a backtrace" do
    (1 / 0 rescue $ERROR_INFO).should_not == nil
  end
end
```

Add spec for aliasing $@
user
```ruby
require_relative '../../spec_helper'
require 'English'

describe "English" do
  it "aliases $! to $ERROR_INFO and $ERROR_INFO still returns an Exception with a backtrace" do
    exception = (1 / 0 rescue $ERROR_INFO)
    exception.should be_kind_of(Exception)
    exception.backtrace.should be_kind_of(Array)
  end

  it "aliases $@ to $ERROR_POSITION and $ERROR_POSITION still returns a backtrace" do
    (1 / 0 rescue $ERROR_POSITION).should be_kind_of(Array)
  end
end
```
assistant