message: Remove Dict::from_value
  Summary: `DictRef::from_value` (D42409240) can be used to access dict contents.
diff: @@ -132,12 +132,6 @@ impl AllocFrozenValue for FrozenDict {
  }
  impl<'v> Dict<'v> {
  - /// Downcast the value to a dict.
  - // TODO(nga): inline.
  - pub fn from_value(x: Value<'v>) -> Option<DictRef<'v>> {
  - DictRef::from_value(x)
  - }
  -
  pub(crate) fn is_dict_type(x: TypeId) -> bool {
  x == TypeId::of::<DictGen<FrozenDict>>()
  || x == TypeId::of::<DictGen<RefCell<Dict<'static>>>>()
  