Add minimized example that allows to reproduce issue in erasure.

Author: DarkDimius

tests/pos/ErasureAnd.scala

@@ -0,0 +1,11 @@
+import scala.annotation.tailrec
+trait A { self: B =>
+  @tailrec
+  private def foo(arg1: Int, arg2: Int): Int = {
+    def bar = this.foo(arg1, arg2)
+    foo(arg1, arg2)
+  }
+  def foo(arg: Int) = arg
+}
+
+class B extends A{}