given with named context bound and with shorthand causes private reference error

[eejbyfeldt]

Compiler version

3.6.4

Minimized code

trait TC[T]:
  type X
given [T: TC as tc](using x: tc.X): TC[List[T]] with {}

Output

-- Error: with_and_as_syntax.scala:3:26 ---
3 |given [T: TC as tc](using x: tc.X): TC[List[T]] with {}
  |                          ^
  |non-private given instance x in class given_TC_List refers to private given instance tc
  |in its type signature given_TC_List.this.tc.X

Expectation

The code should compile without errors.