Rewrote the case class synthetic equals method ...

Rewrote the case class synthetic equals method to be more efficient and
to cause fewer problems for compiler hackers who are always saying stuff
like "the only place this comes up is case class equals..." No review.

1 files changed, 2 insertions, 0 deletions

diff --git a/test/files/pos/polymorphic-case-class.scala b/test/files/pos/polymorphic-case-class.scala
new file mode 100644
index 0000000000..5ed5eeddc9
--- /dev/null
+++ b/test/files/pos/polymorphic-case-class.scala
@@ -0,0 +1,2 @@
+// no unchecked warnings
+case class Bippy[T, -U, +V](x: T, z: V) { }