GC.stat key name

* test/-ext-/tracepoint/test_tracepoint.rb: follow the change of
  key name of GC.stat.

* test/ruby/test_hash.rb (TestHash#test_AREF_fstring_key): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/-ext-/tracepoint/test_tracepoint.rb

@@ -43,10 +43,10 @@ class TestTracepointObj < Test::Unit::TestCase
 
     newobj_count, free_count, gc_start_count, gc_end_mark_count, gc_end_sweep_count, *newobjs = *result
 
-    assert_operator stat2[:total_allocated_object] - stat1[:total_allocated_object], :>=, newobj_count
+    assert_operator stat2[:total_allocated_objects] - stat1[:total_allocated_objects], :>=, newobj_count
     assert_operator 1_000_000, :<=, newobj_count
 
-    assert_operator stat2[:total_freed_object] + stat2[:heap_final_slot] - stat1[:total_freed_object], :>=, free_count
+    assert_operator stat2[:total_freed_objects] + stat2[:heap_final_slots] - stat1[:total_freed_objects], :>=, free_count
     assert_operator stat2[:count] - stat1[:count], :==, gc_start_count
 
     assert_operator gc_start_count, :==, gc_end_mark_count

test/ruby/test_hash.rb

@@ -217,9 +217,9 @@ class TestHash < Test::Unit::TestCase
 
   def test_AREF_fstring_key
     h = {"abc" => 1}
-    before = GC.stat(:total_allocated_object)
+    before = GC.stat(:total_allocated_objects)
     5.times{ h["abc"] }
-    assert_equal before, GC.stat(:total_allocated_object)
+    assert_equal before, GC.stat(:total_allocated_objects)
   end
 
   def test_ASET_fstring_key