Support parameter access in analyzer2dart.

pkg/analyzer2dart/lib/src/element_converter.dart

Index: pkg/analyzer2dart/lib/src/element_converter.dart
diff --git a/pkg/analyzer2dart/lib/src/element_converter.dart b/pkg/analyzer2dart/lib/src/element_converter.dart
index cc67b5737f8d7ac82d3e2a96a2c597d9410ce8f2..03a4f99728ae668ccf6d0455139d1949d1d49873 100644
--- a/pkg/analyzer2dart/lib/src/element_converter.dart
+++ b/pkg/analyzer2dart/lib/src/element_converter.dart
@@ -108,12 +108,14 @@ class ElementY extends dart2js.Element {
     return converter.convertElement(element.library);
   }
 
+  @override
+  bool get isLocal => false;
+
   unsupported(String method) {
     throw new UnsupportedError(
         "'$method' is unsupported on $this ($runtimeType)");
   }
 
-
   @override
   bool get isFinal => unsupported('isFinal');
 
@@ -464,14 +466,23 @@ class TopLevelFunctionElementY extends ElementY
 class ParameterElementY extends ElementY implements dart2js.ParameterElement {
   analyzer.ParameterElement get element => super.element;
 
+  @override
   dart2js.ElementKind get kind => dart2js.ElementKind.PARAMETER;
 
   // TODO(johnniwinther): Convert the type from [element].
+  @override
   dart2js.DartType get type => const dart2js.DynamicType();
 
   // TODO(johnniwinther): Avoid the need for this.
+  @override
   dart2js.FunctionSignature get functionSignature => null;
 
+  @override
+  bool get isLocal => true;
+
+  @override
+  bool get isStatic => false;
+
   ParameterElementY(ElementConverter converter,
                     analyzer.ParameterElement element)
       : super(converter, element) {