Change test for ruby 1.9 crash

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7646 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/test/core_ext/enumerable_test.rb

@@ -46,18 +46,16 @@ def test_nil_sums
 
     assert_equal 60, payments.sum { |p| p.price.to_i * 2 }
   end
-  
+
   def test_empty_sums
     assert_equal 0, [].sum
     assert_equal 0, [].sum { |i| i }
     assert_equal Payment.new(0), [].sum(Payment.new(0))
   end
-  
+
   def test_index_by
     payments = [ Payment.new(5), Payment.new(15), Payment.new(10) ]
-    assert_equal(
-      {5 => payments[0], 15 => payments[1], 10 => payments[2]},
-      payments.index_by(&:price)
-    )
+    assert_equal({ 5 => payments[0], 15 => payments[1], 10 => payments[2] },
+                 payments.index_by { |p| p.price })
   end
 end