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Fix #4781: Add neg test #4825

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Merged
merged 1 commit into from
Jul 23, 2018
Merged

Fix #4781: Add neg test #4825

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9 changes: 9 additions & 0 deletions tests/neg/i4781.scala
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
class A
class B extends A

class Map[T] { def foo(x: T): A = new A }

class AnyRefMap[T <: AnyRef] extends Map[T] {
// This is an overload in Scala 2 but an override in Dotty
def foo(y: T with AnyRef): B = new B // error: missing override modifier
}