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

lib/src/analyzer.dart

Index: lib/src/analyzer.dart
diff --git a/lib/src/analyzer.dart b/lib/src/analyzer.dart
index 6758a2d66013532ae6675094dbe14ce4d88ed798..da1a9fac552092970148f3f78c400d9d5d947fc5 100644
--- a/lib/src/analyzer.dart
+++ b/lib/src/analyzer.dart
@@ -595,7 +595,7 @@ class CallMixin extends Visitor {
    * 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;