fixed #246. adapted check files.

git-svn-id: http://lampsvn.epfl.ch/svn-repos/scala/scala/trunk@13324 5e8d7ff9-d8ef-0310-90f0-a4852d11357a

src/compiler/scala/tools/nsc/symtab/Types.scala

@@ -2260,9 +2260,16 @@ A type's typeSymbol should never be inspected directly.
 
     /** Map this function over given list of symbols */
     def mapOver(origSyms: List[Symbol]): List[Symbol] = { 
-      val origInfos = origSyms map (_.info)
-      val newInfos = List.mapConserve(origInfos)(this)
-      if (newInfos eq origInfos) origSyms // fast path in case nothing changes due to map
+      var change = false
+      val newInfos = for (sym <- origSyms) yield { 
+        val v = variance
+        if (sym.isAliasType) variance = 0
+        val result = this(sym.info)
+        if (result ne sym.info) change = true
+        variance = v
+        result
+      }
+      if (!change) origSyms // fast path in case nothing changes due to map
       else { // map is not the identity --> do cloning properly
         val clonedSyms = origSyms map (_.cloneSymbol)
         val clonedInfos = clonedSyms map (_.info.substSym(origSyms, clonedSyms))

test/files/neg/xmltruncated6.check

@@ -1,4 +1,4 @@
-xmltruncated6.scala:2: error: in XML literal:  expected end of Scala block
+xmltruncated6.scala:2: error: ';' expected but eof found.
   val stuff = <a>{ "no closing brace"
                                      ^
 one error found

test/files/run/interpreter.check

@@ -144,7 +144,7 @@ scala> <console>:1: error: '=' expected but '=>' found.
 scala> <console>:1: error: identifier expected but integer literal found.
        [1,2,3]
         ^
-<console>:1: error: ']' expected but ';' found.
+<console>:1: error: ']' expected but eof found.
        [1,2,3]
               ^