Add one more test

Author: liufengyun

tests/pos-special/fatal-warnings/i7219.scala

@@ -8,12 +8,6 @@ object Foo {
 
 object Bar {
   type Blue = Foo.Blue
-  
-  // Related Issue -- my expectation is that
-  // `export Foo.Blue` should be equivalent to
-  // `type Blue = Foo.Blue`, but it's not:
-  
-  // export Foo.Blue // Uncommenting this (and commenting `type Blue = ...`) results in compile error
 }
 
 import Foo._

tests/pos-special/fatal-warnings/i7219b.scala

@@ -0,0 +1,18 @@
+object Foo {
+  enum MyEnum {
+    case Red
+    case Blue(msg: String)
+  }
+  export MyEnum._
+}
+
+object Bar {
+  export Foo.Blue
+}
+
+import Foo._
+
+def foo(a: MyEnum): Seq[Bar.Blue] = a match {
+  case Red => Seq.empty
+  case m: Foo.Blue => Seq(m)
+}