Fix some issues in element serialization.

pkg/compiler/lib/src/serialization/element_serialization.dart

 // Copyright (c) 2015, 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 dart2js.serialization.elements;
 
 import '../common.dart';
 import '../constants/constructors.dart';
 import '../constants/expressions.dart';
 import '../dart_types.dart';
@@ skipping 422 matching lines @@
   }
 
   void serialize(FunctionElement element, ObjectEncoder encoder,
       SerializedElementKind kind) {
     encoder.setString(Key.NAME, element.name);
     SerializerUtil.serializePosition(element, encoder);
     SerializerUtil.serializeParameters(element, encoder);
     encoder.setType(Key.TYPE, element.type);
     if (element.isFunction) {
       encoder.setBool(Key.IS_OPERATOR, element.isOperator);
+      encoder.setEnum(Key.ASYNC_MARKER, element.asyncMarker);
     }
     SerializerUtil.serializeParentRelation(element, encoder);
     encoder.setBool(Key.IS_EXTERNAL, element.isExternal);
     if (element.isLocal) {
       LocalFunctionElement localFunction = element;
       encoder.setElement(
           Key.EXECUTABLE_CONTEXT, localFunction.executableContext);
     }
   }
 }
@@ skipping 53 matching lines @@
   }
 
   void serialize(ParameterElement element, ObjectEncoder encoder,
       SerializedElementKind kind) {
     encoder.setElement(Key.FUNCTION, element.functionDeclaration);
     encoder.setString(Key.NAME, element.name);
     SerializerUtil.serializePosition(element, encoder);
     encoder.setType(Key.TYPE, element.type);
     encoder.setBool(Key.IS_OPTIONAL, element.isOptional);
     encoder.setBool(Key.IS_NAMED, element.isNamed);
+    encoder.setBool(Key.IS_FINAL, element.isFinal);
     if (element.isOptional) {
       encoder.setConstant(Key.CONSTANT, element.constant);
     }
     if (element.isInitializingFormal) {
       InitializingFormalElement initializingFormal = element;
       encoder.setElement(Key.FIELD, initializingFormal.fieldElement);
     }
   }
 }
 
@@ skipping 141 matching lines @@
         return new TopLevelSetterElementZ(decoder);
       case SerializedElementKind.STATIC_SETTER:
         return new StaticSetterElementZ(decoder);
       case SerializedElementKind.INSTANCE_SETTER:
         return new InstanceSetterElementZ(decoder);
       case SerializedElementKind.TYPEDEF:
         return new TypedefElementZ(decoder);
       case SerializedElementKind.TYPEVARIABLE:
         return new TypeVariableElementZ(decoder);
       case SerializedElementKind.PARAMETER:
-        return new ParameterElementZ(decoder);
+        return new LocalParameterElementZ(decoder);
       case SerializedElementKind.INITIALIZING_FORMAL:
         return new InitializingFormalElementZ(decoder);
       case SerializedElementKind.IMPORT:
         return new ImportElementZ(decoder);
       case SerializedElementKind.EXPORT:
         return new ExportElementZ(decoder);
       case SerializedElementKind.PREFIX:
         return new PrefixElementZ(decoder);
       case SerializedElementKind.LOCAL_VARIABLE:
         return new LocalVariableElementZ(decoder);
       case SerializedElementKind.EXTERNAL_LIBRARY:
       case SerializedElementKind.EXTERNAL_LIBRARY_MEMBER:
       case SerializedElementKind.EXTERNAL_STATIC_MEMBER:
       case SerializedElementKind.EXTERNAL_CONSTRUCTOR:
         break;
     }
     throw new UnsupportedError("Unexpected element kind '${elementKind}.");
   }
 }