Add test for Model#arel_table

test/apps/rails3.1/app/controllers/other_controller.rb

@@ -41,4 +41,8 @@ class OtherController < ApplicationController
     @user = User.find(current_user)
     @greeting = "Hello, #{greeted += 1; @user.name}!"
   end
+
+  def test_arel_table_access
+    User.where(User.arel_table[:id].eq(params[:some_id]))
+  end
 end

test/tests/test_rails31.rb

@@ -622,4 +622,13 @@ class Rails31Tests < Test::Unit::TestCase
       :line => 1,
       :file => /json_test\.html\.erb/
   end
+
+  def test_arel_table_in_sql
+    assert_no_warning :type => :warning,
+      :warning_type => "SQL Injection",
+      :line => 46,
+      :message => /^Possible\ SQL\ injection/,
+      :confidence => 0,
+      :file => /other_controller\.rb/
+  end
 end