avoid method redefined; discarding old empty? warning [#4302 state:committed]

Signed-off-by: Jeremy Kemper <jeremy@bitsweat.net>

activesupport/test/abstract_unit.rb

@@ -10,6 +10,7 @@ $:.unshift(lib) unless $:.include?('lib') || $:.include?(lib)
 
 require 'test/unit'
 require 'active_support/core_ext/kernel/reporting'
+require 'empty_bool'
 
 silence_warnings { require 'mocha' }
 

activesupport/test/core_ext/blank_test.rb

@@ -1,14 +1,6 @@
 require 'abstract_unit'
 require 'active_support/core_ext/object/blank'
 
-class EmptyTrue
-  def empty?() true; end
-end
-
-class EmptyFalse
-  def empty?() false; end
-end
-
 class BlankTest < Test::Unit::TestCase
   BLANK = [ EmptyTrue.new, nil, false, '', '   ', "  \n\t  \r ", [], {} ]
   NOT   = [ EmptyFalse.new, Object.new, true, 0, 1, 'a', [nil], { nil => 0 } ]

activesupport/test/empty_bool.rb

@@ -0,0 +1,7 @@
+class EmptyTrue
+  def empty?() true; end
+end
+
+class EmptyFalse
+  def empty?() false; end
+end

activesupport/test/test_test.rb

@@ -86,14 +86,6 @@ class AssertDifferenceTest < ActiveSupport::TestCase
   end
 end
 
-class EmptyTrue
-  def empty?() true; end
-end
-
-class EmptyFalse
-  def empty?() false; end
-end
-
 class AssertBlankTest < ActiveSupport::TestCase
   BLANK = [ EmptyTrue.new, nil, false, '', '   ', "  \n\t  \r ", [], {} ]
   NOT_BLANK = [ EmptyFalse.new, Object.new, true, 0, 1, 'x', [nil], { nil => 0 } ]