replaced deprecated method call. review by rytz.

git-svn-id: http://lampsvn.epfl.ch/svn-repos/scala/scala/trunk@23122 5e8d7ff9-d8ef-0310-90f0-a4852d11357a

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

@@ -389,7 +389,7 @@ trait NamesDefaults { self: Analyzer =>
    * the default getter.
    */
   def defaultGetter(param: Symbol, context: Context): Symbol = {
-    val i = param.owner.paramss.flatten.findIndexOf(p => p.name == param.name) + 1
+    val i = param.owner.paramss.flatten.indexWhere(p => p.name == param.name) + 1
     if (i > 0) {
       if (param.owner.isConstructor) {
         val defGetterName = "init$default$"+ i