Merge pull request #1324 from h2so5/fix-range-equal

Fix Range#==

src/range.c

@@ -162,8 +162,8 @@ mrb_range_eq(mrb_state *mrb, mrb_value range)
 
   rr = mrb_range_ptr(range);
   ro = mrb_range_ptr(obj);
-  if (!mrb_obj_equal(mrb, rr->edges->beg, ro->edges->beg) ||
-      !mrb_obj_equal(mrb, rr->edges->end, ro->edges->end) ||
+  if (!mrb_bool(mrb_funcall(mrb, rr->edges->beg, "==", 1, ro->edges->beg)) ||
+      !mrb_bool(mrb_funcall(mrb, rr->edges->end, "==", 1, ro->edges->end)) ||
       rr->excl != ro->excl) {
     return mrb_false_value();
   }

test/t/range.rb

@@ -12,6 +12,7 @@ end
 assert('Range#==', '15.2.14.4.1') do
   assert_true (1..10) == (1..10)
   assert_false (1..10) == (1..100)
+  assert_true (1..10) == Range.new(1.0, 10.0)
 end
 
 assert('Range#===', '15.2.14.4.2') do