Warn when `@Id` / `@javax.inject.Named` annotation is found on the parameter name not the parameter type

Support for reading annotations from the parameter itself is flimsy on Scala 2 and just terrible on Scala 3. We should spit out a warning whenever an `@Id` annotation is found on the parameter instead of the type.

Bad practice:

```scala
class X(
  @Id("x") param: Int
)
```

Good practice:

```scala
class X(
  param: Int @Id("x")
)
```