`NamedTuple.From` does not reduce with match type argument

## Compiler version

v3.6.2-RC1

## Minimized code

```scala
type Foo[T] = T
val x: NamedTuple.From[Tuple.Map[(Int, Int), Foo]] = ???
val y = x._1
```

## Output

```scala
[error] 3 |val y = x._1
[error]   |        ^^^^
[error]   |        value _1 is not a member of NamedTuple.From[(Foo[Int], Foo[Int])]
```

## Expectation
No error.