Rollup merge of #145398 - estebank:use-default-fields-resolver, r=petrochenkov

Use `default_field_values` in `Resolver`

Change `Resolver` to use `feature(default_field_values)`. This change is non-exhaustive, as fields may have been added since I made this commit, and `Fx(Index/Hash)(Map/Set)` types would need to have a `const` constructable to change the majority of the fields left over.

Using default field values should make it easier to review when we add or remove fields to `Resolver` in the future, and highlight which fields are run-time dependent in `Resolver::new`.

r? ``@petrochenkov``

Author: Kobzol