SI-9479 Fix regression w. inherited overloads in package object

One shouldn't base any decisions of the owner of an overloaded
symbol. Instead, the owner of each of the alternatives should
be considered.

This gotcha is super easy to forget, as I did with my change to
simplify the way we detect whether we need to add the `.package`
prefix to a tree.

1 files changed, 15 insertions, 0 deletions

diff --git a/test/files/pos/t9479b.scala b/test/files/pos/t9479b.scala
new file mode 100644
index 0000000000..5fc795a1fd
--- /dev/null
+++ b/test/files/pos/t9479b.scala
@@ -0,0 +1,15 @@
+trait Predefs {
+  def bridge(p: String): Unit = ???
+  def bridge(p: Any): Unit = ???
+}
+
+package object molecule extends Predefs
+
+package molecule {
+  package process {
+    class Test {
+      def main(): Unit = molecule.bridge(null, null)
+    }
+  }
+}
+