New utilitly method to create scope with some elements.

git-svn-id: http://lampsvn.epfl.ch/svn-repos/scala/scala/trunk@25523 5e8d7ff9-d8ef-0310-90f0-a4852d11357a

src/compiler/scala/reflect/internal/Scopes.scala

@@ -311,6 +311,13 @@ trait Scopes extends api.Scopes { self: SymbolTable =>
 
   def newScope: Scope = new Scope
   
+  def newScopeWith(elems: Symbol*) = {
+    val scope = newScope
+    elems foreach scope.enter
+    scope
+  }
+    
+
   /** The empty scope (immutable).
    */
   object EmptyScope extends Scope {