Fix the attribute tests to work with Ruby that allows attribute methods to be traced

I have a pull request to fix this in Ruby, but it currently cannot
be merged because this test fails, as it expects the previous
broken behavior. This changes the test to accept either the older
broken output or the fixed output.

Author: jeremyevans

test/block_test.rb

@@ -276,8 +276,6 @@ def Assertion(&blk)
     end
 
     sub_test_case 'attribute' do
-      # TracePoint cannot trace attributes
-      # https://bugs.ruby-lang.org/issues/10470
       setup do
         @obj = Class.new do
           attr_accessor :to_i
@@ -287,23 +285,41 @@ def inspect; '#<Class>'; end
       end
 
       t do
-        assert_equal <<END.chomp, assertion_message {
+        older = <<END.chomp
           @obj.to_i.to_i.to_s
           |              |
           |              "0"
           #<Class>
 END
+        newer = <<END.chomp
+          @obj.to_i.to_i.to_s
+          |    |    |    |
+          |    |    |    "0"
+          |    |    0
+          |    0
+          #<Class>
+END
+        assert_includes [older, newer], assertion_message {
+
           @obj.to_i.to_i.to_s
         }
       end
 
       t do
-        assert_equal <<END.chomp, assertion_message {
+        older = <<END.chomp
           true ? @obj.to_i.to_s : @obj.to_i
                  |         |
                  |         "0"
                  #<Class>
 END
+        newer = <<END.chomp
+          true ? @obj.to_i.to_s : @obj.to_i
+                 |    |    |
+                 |    |    "0"
+                 |    0
+                 #<Class>
+END
+        assert_includes [older, newer], assertion_message {
           true ? @obj.to_i.to_s : @obj.to_i
         }
       end