Cleanup some ambiguous and incorrect types and disable a case that in analyzer.dart that seems like…

lib/src/analyzer.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of csslib.parser;
 
 
 // TODO(terry): Add optimizing phase to remove duplicated selectors in the same
 //              selector group (e.g., .btn, .btn { color: red; }).  Also, look
 //              at simplifying selectors expressions too (much harder).
@@ skipping 577 matching lines @@
       visitMixinRulesetDirective(mixinDef);
     } else {
       visitMixinDeclarationDirective(mixinDef);
     }
   }
 
   /**
    * Given a mixin's defined arguments return a cloned mixin defintion that has
    * replaced all defined arguments with user's supplied VarUsages.
    */
-  MixinDefinition transform(List<TreeNode> callArgs) {
+  MixinDefinition transform(List callArgs) {
     // TODO(terry): Handle default arguments and varArgs.
     // Transform mixin with callArgs.
     var index = 0;
     for (var index = 0; index < _definedArgs.length; index++) {
       var definedArg = _definedArgs[index];
       VarDefinition varDef;
       if (definedArg is VarDefinition) {
         varDef = definedArg;
       } else if (definedArg is VarDefinitionDirective) {
         VarDefinitionDirective varDirective = definedArg;
@@ skipping 399 matching lines @@
             isLastNone = false;
           }
         } else {
           isLastNone = simpleSeq.isCombinatorNone;
         }
       }
     }
     super.visitSelectorGroup(node);
   }
 }