Fix #2067: Compute defKind at Typer, not Namer

It's hard to predict for defKind all the desugarings that can be
applied to a definition. Better to do it once the desugarings have been
applied. NoInit and PureInterface are both tested only after Typer,
so it's OK to delay their initialization until regular Typer.

1 files changed, 3 insertions, 0 deletions

diff --git a/tests/pickling/innerclass.scala b/tests/pickling/innerclass.scala
new file mode 100644
index 000000000..5881cf6ed
--- /dev/null
+++ b/tests/pickling/innerclass.scala
@@ -0,0 +1,3 @@
+trait Foo {
+  class Inner(x: Int = 42)
+}