Check both ways for GC.stat specs

Author: eregon

spec/ruby/core/gc/stat_spec.rb

@@ -25,13 +25,16 @@
 
   it "provides some number for count" do
     GC.stat(:count).should be_kind_of(Integer)
+    GC.stat[:count].should be_kind_of(Integer)
   end
 
   it "provides some number for heap_free_slots" do
     GC.stat(:heap_free_slots).should be_kind_of(Integer)
+    GC.stat[:heap_free_slots].should be_kind_of(Integer)
   end
 
   it "provides some number for total_allocated_objects" do
     GC.stat(:total_allocated_objects).should be_kind_of(Integer)
+    GC.stat[:total_allocated_objects].should be_kind_of(Integer)
   end
 end