Disallow taking a class tag of Nothing or Null.

It seems in most cases this leads to weird behavior and cause
confusing error messages later.

It also means we cannot create an Array[Nothing], except by
passing the classtag explicitly.

2 files changed, 3 insertions, 3 deletions

diff --git a/tests/pos/t3859.scala b/tests/pos/t3859.scala
index 992207301..486c1d4b2 100644
--- a/tests/pos/t3859.scala
+++ b/tests/pos/t3859.scala
@@ -1,4 +1,4 @@
 class Test {
-  def foo: Unit = bar(Array(): _*)
+  def foo: Unit = bar(Array[AnyRef](): _*)
   def bar(values: AnyRef*): Unit = ()
 }
diff --git a/tests/pos/t5859.scala b/tests/pos/t5859.scala
index 2a31e68ee..60ec8b4cb 100644
--- a/tests/pos/t5859.scala
+++ b/tests/pos/t5859.scala
@@ -7,9 +7,9 @@ class A {
   f(List[AnyRef](): _*)
   f(List(): _*)
   f(Nil: _*)
-  f(Array(): _*)
+  // f(Array(): _*)  // undetermined ClassTag
   f(Array[AnyRef](): _*)
   f(List(1))
   f(List(1), Nil: _*)
-  f(List(1), Array(): _*)
+  // f(List(1), Array(): _*)  // undetermined ClassTag
 }