fix local setter suggestions

pkg/analysis_server/lib/src/services/completion/local_computer.dart

 // Copyright (c) 2014, 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 services.completion.computer.dart.local;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart' as protocol show Element,
     ElementKind;
@@ skipping 181 matching lines @@
     }
   }
 
   @override
   void declaredMethod(MethodDeclaration declaration) {
     if (typesOnly) {
       return;
     }
     protocol.ElementKind kind;
     String parameters;
+    TypeName returnType = declaration.returnType;
     if (declaration.isGetter) {
       kind = protocol.ElementKind.GETTER;
-      parameters = '()';
+      parameters = null;
     } else if (declaration.isSetter) {
       if (excludeVoidReturn) {
         return;
       }
       kind = protocol.ElementKind.SETTER;
-      parameters = '(${declaration.returnType.toSource()} value)';
+      returnType = null;
     } else {
-      if (excludeVoidReturn && _isVoid(declaration.returnType)) {
+      if (excludeVoidReturn && _isVoid(returnType)) {
         return;
       }
       kind = protocol.ElementKind.METHOD;
       parameters = declaration.parameters.toSource();
     }
     bool isDeprecated = _isDeprecated(declaration);
     CompletionSuggestion suggestion = _addSuggestion(
         declaration.name,
-        declaration.returnType,
+        returnType,
         declaration.parent,
         isDeprecated);
     if (suggestion != null) {
       suggestion.element = _createElement(
           kind,
           declaration.name,
           parameters,
-          declaration.returnType,
+          returnType,
           declaration.isAbstract,
           isDeprecated);
     }
   }
 
   @override
   void declaredParam(SimpleIdentifier name, TypeName type) {
     if (typesOnly) {
       return;
     }
@@ skipping 135 matching lines @@
     if (name == null || name.length <= 0) {
       return DYNAMIC;
     }
     TypeArgumentList typeArgs = type.typeArguments;
     if (typeArgs != null) {
       //TODO (danrubel) include type arguments
     }
     return name;
   }
 }