Inlay hints for positional record construction

## Is your enhancement request related to a problem? Please describe.

When using a data constructor that has record fields positionally, it would be nice to know what the field names are, and maybe have the option to convert to record synax.

e.g. this
```
Foo a b c
```
becomes
```
Foo <hint>x=</hint>a <hint>y=</hint>b <hint>z=</hint>c
```
