Merged revisions 24570 via svnmerge from

https://lampsvn.epfl.ch/svn-repos/scala/scala/trunk

........
  r24570 | odersky | 2011-03-24 17:54:16 +0100 (Thu, 24 Mar 2011) | 1 line

  Moved Dynamic support to -Xexperimental.
........

Author: Antonio Cunei

src/compiler/scala/tools/nsc/typechecker/Typers.scala

@@ -3493,7 +3493,7 @@ trait Typers extends Modes {
 
           // try to expand according to Dynamic rules.
 
-          if (qual.tpe.widen.typeSymbol isNonBottomSubClass DynamicClass) {
+          if (settings.Xexperimental.value && (qual.tpe.widen.typeSymbol isNonBottomSubClass DynamicClass)) {
             var dynInvoke = Apply(Select(qual, nme.applyDynamic), List(Literal(Constant(name.decode))))
             context.tree match {
               case Apply(tree1, args) if tree1 eq tree =>