scopes.scala:3: error: t is already defined as type t
  type t = Float
       ^
scopes.scala:5: error: x is already defined as value x
  val x: Float = .0f;
      ^
scopes.scala:8: error: y is already defined as value y
    val y: Float = .0f
        ^
scopes.scala:6: warning: a pure expression does nothing in statement position; multiline expressions may require enclosing parentheses
  {
  ^
scopes.scala:11: error: x is already defined as value x
  def f1(x: Int, x: Float) = x
                 ^
scopes.scala:12: error: y is already defined as value y
  def f2(x: Int)(y: Int, y: Float) = x + y
                         ^
scopes.scala:13: error: x is already defined as value x
  val closure = (x: Int, x: Float) => x
                          ^
scopes.scala:15: error: x is already defined as value x
    case x::x => x
            ^
one warning found
7 errors found