Inlay hints for deriving strategies

## Is your enhancement request related to a problem? Please describe.

When you use deriving without deriving strategies, the choice of how the instance is derived is implicit. We could make this explicit with inlay hints.

## Describe the solution you'd like

```
data Foo ...
deriving stock (Eq, Ord)
```

The tricky bit will be if we have a list of derived classes which use different strategies! I would suggest something like:

```
data Foo ...
deriving stock,anyclass (Eq, ToJSON)
```

Triggering this would of course produce
```
data Foo ..
deriving stock Eq
deriving anyclass ToJSON
```