Implement searchMemberDeclarations() / searchTopLevelDeclarations().

pkg/analysis_server/lib/src/services/index2/index2.dart

Index: pkg/analysis_server/lib/src/services/index2/index2.dart
diff --git a/pkg/analysis_server/lib/src/services/index2/index2.dart b/pkg/analysis_server/lib/src/services/index2/index2.dart
index 00f536cee26d6580bf2df4cdfd054a44a32430c4..d8e40c2cb2c3d24b55d3bcb818a65a1ca5a7b24c 100644
--- a/pkg/analysis_server/lib/src/services/index2/index2.dart
+++ b/pkg/analysis_server/lib/src/services/index2/index2.dart
@@ -348,7 +348,7 @@ class _UnitIndexRequester {
           unitLibraryUri ??= packageRequester.getUnitLibraryUri(unitIndex.unit);
           unitUnitUri ??= packageRequester.getUnitUnitUri(unitIndex.unit);
           locations.add(new Location(unitLibraryUri, unitUnitUri,
-              unitIndex.definedNameOffsets[i], 0, false));
+              unitIndex.definedNameOffsets[i], name.length, false));
         }
       }
     }