Parse formal parameters.

dart/frog/leg/elements/elements.dart

 // Copyright (c) 2011, 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('elements');
 
 #import('../tree/tree.dart');
 #import('../scanner/scannerlib.dart');
 #import('../leg.dart');  // TODO(karlklose): we only need type.
 #import('../util/util.dart');
@@ skipping 41 matching lines @@
 
   FunctionType computeType(Compiler compiler, types) {
     if (type != null) return type;
 
     FunctionExpression node = parseNode(compiler, compiler);
     Type returnType = getType(node.returnType, types);
     if (returnType === null) compiler.cancel('unknown type $returnType');
     LinkBuilder<Type> parameterTypes = new LinkBuilder<Type>();
     for (var link = node.parameters.nodes; !link.isEmpty(); link = link.tail) {
       compiler.cancel('parameters not supported.');
-      var parameter = link.head;
-      parameterTypes.addLast(getType(parameter.typeAnnotation, types));
+      VariableDefinitions parameter = link.head;
+      parameterTypes.addLast(getType(parameter.type, types));
     }
     type = new FunctionType(returnType, parameterTypes.toLink());
     return type;
   }
 }