Ensure access from subclass to trait lazy val

Since we need to refer to a trait lazy val's accessor using a
super call in a subclass (when the field and bitmap are added),
we must ensure that access is allowed.

If the lazy val has an access boundary (e.g., `private[somePkg]`),
make sure the `PROTECTED` flag is set, which widens access
to `protected[somePkg]`. (As `member.hasAccessBoundary` implies
`!member.hasFlag(PRIVATE)`, we don't have to `resetFlag PRIVATE`.)

1 files changed, 2 insertions, 0 deletions

diff --git a/test/files/pos/trait_lazy_accessboundary.scala b/test/files/pos/trait_lazy_accessboundary.scala
new file mode 100644
index 0000000000..6529816ffb
--- /dev/null
+++ b/test/files/pos/trait_lazy_accessboundary.scala
@@ -0,0 +1,2 @@
+package foo { trait HasLazy { private[foo] lazy val myLazy = "my lady" } }
+package bar { class MixInSuperLazy extends foo.HasLazy }