Many type fixes.

lib/compiler/implementation/tree/nodes.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.
 
 interface Visitor<R> {
   R visitBlock(Block node);
   R visitBreakStatement(BreakStatement node);
   R visitCascade(Cascade node);
   R visitCascadeReceiver(CascadeReceiver node);
   R visitCatchBlock(CatchBlock node);
@@ skipping 608 matching lines @@
   Token getEndToken() => token;
 }
 
 class LiteralInt extends Literal<int> {
   LiteralInt(Token token, DecodeErrorHandler handler) : super(token, handler);
 
   LiteralInt asLiteralInt() => this;
 
   int get value() {
     try {
-      Token token = this.token;
-      if (token.kind === PLUS_TOKEN) token = token.next;
-      return Math.parseInt(token.value.slowToString());
+      Token valueToken = token;
+      if (valueToken.kind === PLUS_TOKEN) valueToken = valueToken.next;
+      return Math.parseInt(valueToken.value.slowToString());
     } catch (BadNumberFormatException ex) {
       (this.handler)(token, ex);
     }
   }
 
   accept(Visitor visitor) => visitor.visitLiteralInt(this);
 }
 
 class LiteralDouble extends Literal<double> {
   LiteralDouble(Token token, DecodeErrorHandler handler)
     : super(token, handler);
 
   LiteralDouble asLiteralDouble() => this;
 
   double get value() {
     try {
-      Token token = this.token;
-      if (token.kind === PLUS_TOKEN) token = token.next;
-      return Math.parseDouble(token.value.slowToString());
+      Token valueToken = token;
+      if (valueToken.kind === PLUS_TOKEN) valueToken = valueToken.next;
+      return Math.parseDouble(valueToken.value.slowToString());
     } catch (BadNumberFormatException ex) {
       (this.handler)(token, ex);
     }
   }
 
   accept(Visitor visitor) => visitor.visitLiteralDouble(this);
 }
 
 class LiteralBool extends Literal<bool> {
   LiteralBool(Token token, DecodeErrorHandler handler) : super(token, handler);
@@ skipping 712 matching lines @@
       token = token.next.next;
     }
     Link<Token> recursiveGetCases(Token token, Link<Expression> expressions) {
       if (token.stringValue === 'case') {
         Token colon = expressions.head.getEndToken().next;
         return new Link<Token>(token,
                                recursiveGetCases(colon.next, expressions.tail));
       }
       return const EmptyLink<Token>();
     }
-    return recursiveGetCases(token, expressions);
+    return recursiveGetCases(token, expressions.nodes);
   }
 }
 
 class GotoStatement extends Statement {
   final Identifier target;
   final Token keywordToken;
   final Token semicolonToken;
 
   GotoStatement(this.target, this.keywordToken, this.semicolonToken);
 
@@ skipping 286 matching lines @@
  * argument).
  *
  * TODO(ahe): This method is controversial, the team needs to discuss
  * if top-level methods are acceptable and what naming conventions to
  * use.
  */
 initializerDo(Node node, f(Node node)) {
   SendSet send = node.asSendSet();
   if (send !== null) return f(send.arguments.head);
 }