scala> import scala.collection.mutable
scala> val buf = mutable.ListBuffer[Int]()
val buf: mutable.ListBuffer[Int] = ListBuffer()
scala> object o { val xs = List(1, 2, 3) }
// defined object o
scala> import o._
scala> buf += xs
-- [E007] Type Mismatch Error: -------------------------------------------------
1 |buf += xs
  |       ^^
  |       Found:    (o.xs : List[Int])
  |       Required: Int
  |
  | longer explanation available when compiling with `-explain`
1 error found
scala> buf ++= xs
val res0: mutable.ListBuffer[Int] = ListBuffer(1, 2, 3)
scala> import util.foobar
-- [E008] Not Found Error: -----------------------------------------------------
1 |import util.foobar
  |            ^^^^^^
  |            value foobar is not a member of util
1 error found
scala> import util.foobar.bar
-- [E008] Not Found Error: -----------------------------------------------------
1 |import util.foobar.bar
  |       ^^^^^^^^^^^
  |       value foobar is not a member of util
1 error found
