```ruby
require File.expand_path('../../../spec_helper', __FILE__)

ruby_version_is "1.9" do
  describe "BasicObject#!=" do
    it "is a public instance method" do
      BasicObject.should have_public_instance_method(:!=)
    end

    it "returns true if other is not identical to self" do
      a = BasicObject.new
      b = BasicObject.new
      (a != b).should be_true
    end

    it "returns true if other is an Object" do
      a = BasicObject.new
      b = Object.new
      (a != b).should be_true
    end

    it "returns false if other is identical to self" do
      a = BasicObject.new
      (a != a).should be_false
    end
  end
end
```

Add spec for 1.9 != dispatching to ==.
user
```ruby
require File.expand_path('../../../spec_helper', __FILE__)

ruby_version_is "1.9" do
  describe "BasicObject#!=" do
    it "is a public instance method" do
      BasicObject.should have_public_instance_method(:!=)
    end

    it "returns true if other is not identical to self" do
      a = BasicObject.new
      b = BasicObject.new
      (a != b).should be_true
    end

    it "returns true if other is an Object" do
      a = BasicObject.new
      b = Object.new
      (a != b).should be_true
    end

    it "returns false if other is identical to self" do
      a = BasicObject.new
      (a != a).should be_false
    end

    it "dispatches to #==" do
      a = mock("not_equal")
      b = BasicObject.new
      a.should_receive(:==).and_return(true)

      (a != b).should be_false
    end
  end
end
```
assistant