Compile scala.collection.Seq without double-binding error

This commit fixes two issues which caused us to complete Seq too early and
read it from the classpath instead of from the sources:
- Evaluting RepeatedParamClass forced Seq, this is not necessary
  because the type of RepeatedParamClass is a LazyType
- TypeErasure#sigName on a Scala type always forced Seq, even if
  the type is not a repeated param type.

This fixes #980.

1 files changed, 1 insertions, 2 deletions

diff --git a/test/dotc/scala-collections.whitelist b/test/dotc/scala-collections.whitelist
index a0c9ce588..4f87fadf8 100644
--- a/test/dotc/scala-collections.whitelist
+++ b/test/dotc/scala-collections.whitelist
@@ -163,8 +163,7 @@
 ./scala-scala/src/library/scala/collection/Searching.scala
 
 
-# cyclic reference involving trait Seq
-#./scala-scala/src/library/scala/collection/Seq.scala
+./scala-scala/src/library/scala/collection/Seq.scala
 
 ./scala-scala/src/library/scala/collection/SeqExtractors.scala