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Fix #7859: Add test case #8417

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Merged
merged 1 commit into from
Mar 2, 2020
Merged

Fix #7859: Add test case #8417

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19 changes: 19 additions & 0 deletions tests/pos/i8397.scala
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Original file line number Diff line number Diff line change
@@ -1,3 +1,22 @@
given foo(using x: Int) as AnyRef:
type T = x.type

// #7859

trait Lub2[A, B]:
type Output

given [A <: C, B <: C, C] as Lub2[A, B]:
type Output = C

trait Lub[Union]:
type Output

given [A] as Lub[A]:
type Output = A

given [Left, Right](
using lubLeft: Lub[Right], lubRight: Lub[Right])(
using lub2: Lub2[lubLeft.Output, lubRight.Output])
as Lub[Left | Right]:
type Output = lub2.Output