Implement SearchEngine.searchMemberDeclarations() for the new driver.

pkg/analysis_server/lib/src/services/search/search_engine_internal2.dart

 // Copyright (c) 2016, 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.
 
 import 'dart:async';
 
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer/src/dart/analysis/search.dart';
@@ skipping 20 matching lines @@
         }
       }
     }
 
     await addSubtypes(type);
     return allSubtypes;
   }
 
   @override
   Future<List<SearchMatch>> searchMemberDeclarations(String name) async {
-    // TODO(scheglov) implement
-    return [];
+    List<SearchMatch> allDeclarations = [];
+    RegExp regExp = new RegExp('^$name\$');
+    for (AnalysisDriver driver in _drivers) {
+      List<Element> elements = await driver.search.classMembers(regExp);
+      allDeclarations.addAll(elements.map(_SearchMatch.forElement));
+    }
+    return allDeclarations;
   }
 
   @override
   Future<List<SearchMatch>> searchMemberReferences(String name) async {
     // TODO(scheglov) implement
     return [];
   }
 
   @override
   Future<List<SearchMatch>> searchReferences(Element element) async {
@@ skipping 10 matching lines @@
     List<SearchResult> results = await _searchDirectSubtypes(type);
     return results.map(_SearchMatch.forSearchResult).toList();
   }
 
   @override
   Future<List<SearchMatch>> searchTopLevelDeclarations(String pattern) async {
     List<SearchMatch> allDeclarations = [];
     RegExp regExp = new RegExp(pattern);
     for (AnalysisDriver driver in _drivers) {
       List<Element> elements = await driver.search.topLevelElements(regExp);
-      for (Element element in elements) {
-        allDeclarations.add(new _SearchMatch(
-            element.source.fullName,
-            element.librarySource,
-            element.source,
-            element.library,
-            element,
-            true,
-            true,
-            MatchKind.DECLARATION,
-            new SourceRange(element.nameOffset, element.nameLength)));
-      }
+      allDeclarations.addAll(elements.map(_SearchMatch.forElement));
     }
     return allDeclarations;
   }
 
   Future<List<SearchResult>> _searchDirectSubtypes(ClassElement type) async {
     List<SearchResult> allResults = [];
     for (AnalysisDriver driver in _drivers) {
       List<SearchResult> results = await driver.search.subTypes(type);
       allResults.addAll(results);
     }
@@ skipping 66 matching lines @@
         enclosingElement.librarySource,
         enclosingElement.source,
         enclosingElement.library,
         enclosingElement,
         result.isResolved,
         result.isQualified,
         toMatchKind(result.kind),
         new SourceRange(result.offset, result.length));
   }
 
+  static _SearchMatch forElement(Element element) {
+    return new _SearchMatch(
+        element.source.fullName,
+        element.librarySource,
+        element.source,
+        element.library,
+        element,
+        true,
+        true,
+        MatchKind.DECLARATION,
+        new SourceRange(element.nameOffset, element.nameLength));
+  }
+
   static MatchKind toMatchKind(SearchResultKind kind) {
     if (kind == SearchResultKind.READ) {
       return MatchKind.READ;
     }
     if (kind == SearchResultKind.READ_WRITE) {
       return MatchKind.READ_WRITE;
     }
     if (kind == SearchResultKind.WRITE) {
       return MatchKind.WRITE;
     }
     if (kind == SearchResultKind.INVOCATION) {
       return MatchKind.INVOCATION;
     }
     return MatchKind.REFERENCE;
   }
 }