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trait A
trait B
trait L[A2, B2 <: A2] {
def bar(a: Any, b: Any) = 0
}
object Lub {
// use named args transforms to include TypeTree(<lub.tpe>) in the AST before refchecks.
def foo(a: L[_, _], b: Any) = 0
foo(b = 0, a = if (true) (null: L[A, A]) else (null: L[B, B]))
(if (true) (null: L[A, A]) else (null: L[B, B])).bar(b = 0, a = 0)
}
/*
The LUB ends up as:
TypeRef(
TypeSymbol(
abstract trait L#7038[A2#7039, B2#7040 <: A2#7039] extends AnyRef#2197
)
args = List(
AbstractTypeRef(
AbstractType(
type _1#13680 >: A#7036 with B#7037 <: Object#1752
)
)
AbstractTypeRef(
AbstractType(
type _2#13681 >: A#7036 with B#7037 <: Object#1752
)
)
)
)
Note that type _2#13681 is *not* bound by _1#13680
*/
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