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

lib/parser.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.
 
 library csslib.parser;
 
 import 'dart:math' as math;
 
 import 'package:source_span/source_span.dart';
 
@@ skipping 112 matching lines @@
       // because by the time the flag is set one token has already been fetched.
       ..tokenizer.inSelector = true)
       .processSelectorGroup();
 }
 
 String _inputAsString(input) {
   String source;
 
   if (input is String) {
     source = input;
-  } else if (input is List<int>) {
+  } else if (input is List) {
     // TODO(terry): The parse function needs an "encoding" argument and will
     //              default to whatever encoding CSS defaults to.
     //
     // Here's some info about CSS encodings:
     // http://www.w3.org/International/questions/qa-css-charset.en.php
     //
     // As JMesserly suggests it will probably need a "preparser" html5lib
     // (encoding_parser.dart) that interprets the bytes as ASCII and scans for
     // @charset. But for now an "encoding" argument would work.  Often the
     // HTTP header will indicate the correct encoding.
     //
     // See encoding helpers at: package:html5lib/lib/src/char_encodings.dart
     // These helpers can decode in different formats given an encoding name
     // (mostly unicode, ascii, windows-1252 which is html5 default encoding).
-    source = new String.fromCharCodes(input);
+    source = new String.fromCharCodes(input as List<int>);
   } else {
     // TODO(terry): Support RandomAccessFile using console.
     throw new ArgumentError("'source' must be a String or "
         "List<int> (of bytes). RandomAccessFile not supported from this "
         "simple interface");
   }
 
   return source;
 }
 
@@ skipping 2536 matching lines @@
 
     if (replace != null && result == null) {
       result = new StringBuffer(text.substring(0, i));
     }
 
     if (result != null) result.write(replace != null ? replace : text[i]);
   }
 
   return result == null ? text : result.toString();
 }