Fix `Fixnum` and `Float` comparison in `Hash` lookup
```console
$ bin/mruby -e 'p({1 => 2}.key?(1.0))'
true
```
```console
$ bin/mruby -e 'p({1 => 2}.key?(1.0))'
false
```
MODIFY
src/hash.c
src/hash.c
@@ -96,27 +96,13 @@ ht_hash_equal(mrb_state *mrb, htable *t, mrb_value a, mrb_value b)
return mrb_symbol(a) == mrb_symbol(b);
case MRB_TT_FIXNUM:
- switch (mrb_type(b)) {
- case MRB_TT_FIXNUM:
+ if (!mrb_fixnum_p(b)) return FALSE;
return mrb_fixnum(a) == mrb_fixnum(b);
-#ifndef MRB_NO_FLOAT
- case MRB_TT_FLOAT:
- return (mrb_float)mrb_fixnum(a) == mrb_float(b);
-#endif
- default:
- return FALSE;
- }
#ifndef MRB_NO_FLOAT
case MRB_TT_FLOAT:
- switch (mrb_type(b)) {
- case MRB_TT_FIXNUM:
- return mrb_float(a) == (mrb_float)mrb_fixnum(b);
- case MRB_TT_FLOAT:
+ if (!mrb_float_p(b)) return FALSE;
return mrb_float(a) == mrb_float(b);
- default:
- return FALSE;
- }
#endif
default:

Fix `Fixnum` and `Float` comparison in `Hash` lookup

  ```console
  $ bin/mruby -e 'p({1 => 2}.key?(1.0))'
  true
  ```

  ```console
  $ bin/mruby -e 'p({1 => 2}.key?(1.0))'
  false
  ```