Named and default arguments

 - MethodTypes now have (params: List[Symbol])
 - "copy"-methods for case classes
 - the "copy" object in the compiler is now called "treeCopy"

Author: lrytz

src/library/scala/xml/NodeSeq.scala

@@ -51,7 +51,7 @@ abstract class NodeSeq extends immutable.Sequence[Node] with SequenceTemplate[No
   def apply(f: Node => Boolean): NodeSeq = filter(f)
 
   /** structural equality */
-  override def equals(x: Any) = x match {
+  override def equals(x: Any): Boolean = x match {
     case z:Node      => (length == 1) && z == apply(0)
     case z:Seq[_]    => sameElements(z)
     case z:String    => text == z

test/files/jvm/interpreter.check

@@ -5,7 +5,7 @@ scala>
 scala> 
 scala> res0: Int = 7
 
-scala>      |      |      |      | gcd: (Int,Int)Int
+scala>      |      |      |      | gcd: (x: Int,y: Int)Int
 
 scala> five: Int = 5
 
@@ -59,7 +59,7 @@ scala> defined class Foo
 
 scala> defined class Bar
 
-scala> foo2bar: (Foo)Bar
+scala> foo2bar: (foo: Foo)Bar
 
 scala> bar: Bar = Bar(3)
 
@@ -206,11 +206,11 @@ missing combination           Term
 
        def f(e: Exp) = e match {  // non-exhaustive warning here
                        ^
-f: (Exp)Int
+f: (e: Exp)Int
 
 scala> 
 scala> 
-plusOne: (Int)Int
+plusOne: (x: Int)Int
 res0: Int = 6
 res0: java.lang.String = after reset
 <console>:5: error: not found: value plusOne

test/files/run/t1500.check

@@ -1,3 +1,3 @@
 defined class posingAs
-resolve: [A,B](A @posingAs[B])B
+resolve: [A,B](x: A @posingAs[B])B
 x: Any = 7

test/files/run/t1501.check

@@ -1,3 +1,3 @@
 defined class xyz
-loopWhile: [T](=> Boolean)(=> Unit @xyz[T])Unit @xyz[T]
+loopWhile: [T](cond: => Boolean)(body: => Unit @xyz[T])Unit @xyz[T]
 test: ()Unit @xyz[Int]