Fix #127: Use unexpanded names

internal/compiler-bridge/src/main/scala/xsbt/ClassName.scala

@@ -68,15 +68,19 @@ trait ClassName extends Compat {
    *
    * If `s` represents a package object `pkg3`, then the returned name will be `pkg1.pkg2.pkg3.package`.
    * If `s` represents a class `Foo` nested in package object `pkg3` then the returned name is `pkg1.pkg2.pk3.Foo`.
+   *
+   * Note that some objects with special access rights are encoded in names
+   * (like qualified privates `private[qualifier]`). In order to get the right
+   * original names, we need to use `unexpandedName`.
    */
   protected def classNameAsSeenIn(in: Symbol, s: Symbol): String =
     enteringPhase(currentRun.picklerPhase.next) {
       if (in.isRoot || in.isRootPackage || in == NoSymbol || in.isEffectiveRoot)
         s.simpleName.toString
       else if (in.isPackageObjectOrClass)
-        in.owner.fullName + "." + s.name
+        in.owner.fullName + "." + s.unexpandedName
       else
-        in.fullName + "." + s.name
+        in.fullName + "." + s.unexpandedName
     }
 
   private def pickledName(s: Symbol): Name =

zinc/src/sbt-test/source-dependencies/unexpanded-names/Foo.scala

@@ -0,0 +1,19 @@
+class Fooo {
+  // This one is problematic because of expanded names
+  private[Fooo] object Bar
+}
+
+package issue127 {
+  class Foo {
+    private[Foo] object Bar
+    class Baz {
+      private[Baz] object Bazz
+    }
+  }
+
+  object Foo {
+    private[issue127] class Bippy
+    // This one is problematic because of expanded names
+    private[issue127] object Bippy
+  }
+}

zinc/src/sbt-test/source-dependencies/unexpanded-names/test

@@ -0,0 +1,2 @@
+# See https://github.com/sbt/zinc/issues/127
+> compile