5 files changed, 64 insertions, 1 deletions
diff --git a/test/files/neg/t7860.check b/test/files/neg/t7860.check
new file mode 100644
index 0000000000..9b9d86c89d
--- /dev/null
+++ b/test/files/neg/t7860.check
@@ -0,0 +1,9 @@
+t7860.scala:5: warning: private class for your eyes only in object Test is never used
+  private implicit class `for your eyes only`(i: Int) {       // warn
+                         ^
+t7860.scala:31: warning: private class C in object Test3 is never used
+  private implicit class C(val i: Int) extends AnyVal {       // warn
+                         ^
+error: No warnings can be incurred under -Xfatal-warnings.
+two warnings found
+one error found
diff --git a/test/files/neg/t7860.flags b/test/files/neg/t7860.flags
new file mode 100644
index 0000000000..6ff0dea0b2
--- /dev/null
+++ b/test/files/neg/t7860.flags
@@ -0,0 +1 @@
+-Xfatal-warnings -Ywarn-unused:privates
diff --git a/test/files/neg/t7860.scala b/test/files/neg/t7860.scala
new file mode 100644
index 0000000000..6cc0d3e7f5
--- /dev/null
+++ b/test/files/neg/t7860.scala
@@ -0,0 +1,42 @@
+
+class Test
+
+object Test {
+  private implicit class `for your eyes only`(i: Int) {       // warn
+    def f = i
+  }
+}
+
+class Test2 {
+  import Test2._
+  println(5.toStr)
+}
+ 
+object Test2 {
+  // was: warning: private object in object Test2 is never used
+  // i.e. synthetic object C
+  private implicit class C(val i: Int) extends AnyVal {       // no warn
+    def toStr = i.toString
+  }
+}
+
+class Test3 {
+  import Test3._
+  //println(5.toStr)
+}
+ 
+object Test3 {
+  // was: warning: private object in object Test2 is never used
+  // i.e. synthetic object C
+  private implicit class C(val i: Int) extends AnyVal {       // warn
+    def toStr = i.toString
+  }
+}
+
+object Test4 {
+  class A { class B }
+
+  private val a: A = new A
+
+  def b = (new a.B).##
+}
diff --git a/test/files/neg/warn-unused-privates.check b/test/files/neg/warn-unused-privates.check
index 490e070794..d4853847fd 100644
--- a/test/files/neg/warn-unused-privates.check
+++ b/test/files/neg/warn-unused-privates.check
@@ -97,6 +97,9 @@ warn-unused-privates.scala:118: warning: local class DingDongDoobie is never use
 warn-unused-privates.scala:121: warning: local type OtherThing is never used
     type OtherThing = String // warn
          ^
+warn-unused-privates.scala:216: warning: private class for your eyes only in object not even using companion privates is never used
+  private implicit class `for your eyes only`(i: Int) {  // warn
+                         ^
 warn-unused-privates.scala:201: warning: pattern var z in method f is never used; `z@_' suppresses this warning
     case z => "warn"
          ^
@@ -104,5 +107,5 @@ warn-unused-privates.scala:208: warning: pattern var z in method f is never used
     case Some(z) => "warn"
               ^
 error: No warnings can be incurred under -Xfatal-warnings.
-35 warnings found
+36 warnings found
 one error found
diff --git a/test/files/neg/warn-unused-privates.scala b/test/files/neg/warn-unused-privates.scala
index 777e0f1579..6f16ab4138 100644
--- a/test/files/neg/warn-unused-privates.scala
+++ b/test/files/neg/warn-unused-privates.scala
@@ -209,3 +209,11 @@ trait CaseyAtTheBat {
     case None => "no warn"
   }
 }
+
+class `not even using companion privates`
+
+object `not even using companion privates` {
+  private implicit class `for your eyes only`(i: Int) {  // warn
+    def f = i
+  }
+}