rename mrb_value_p() to mrb_ptr() since _p means predicate in mruby source

src/etc.c

@@ -176,7 +176,7 @@ mrb_obj_id(mrb_value obj)
   case  MRB_TT_FILE:
   case  MRB_TT_DATA:
   default:
-    return MakeID(mrb_value_p(obj));
+    return MakeID(mrb_ptr(obj));
   }
 }
 

src/object.c

@@ -29,7 +29,7 @@ mrb_obj_eq(mrb_state *mrb, mrb_value v1, mrb_value v2)
     return (mrb_float(v1) == mrb_float(v2));
 
   default:
-    return (mrb_value_p(v1) == mrb_value_p(v2));
+    return (mrb_ptr(v1) == mrb_ptr(v2));
   }
 }