Improve search for constructors and import elements.

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

Index: pkg/analysis_server/lib/src/services/search/search_engine_internal2.dart
diff --git a/pkg/analysis_server/lib/src/services/search/search_engine_internal2.dart b/pkg/analysis_server/lib/src/services/search/search_engine_internal2.dart
index 953f6c34f229f0bfe51cd4ba26b3a3af7745478b..4ad5898386c454d94e5e609ac90a733c307976fb 100644
--- a/pkg/analysis_server/lib/src/services/search/search_engine_internal2.dart
+++ b/pkg/analysis_server/lib/src/services/search/search_engine_internal2.dart
@@ -141,8 +141,10 @@ class SearchEngineImpl2 implements SearchEngine {
     PropertyAccessorElement getter = field.getter;
     PropertyAccessorElement setter = field.setter;
     // field itself
-    await _addMatches(matches, field, IndexRelationKind.IS_REFERENCED_BY,
-        MatchKind.REFERENCE);
+    if (!field.isSynthetic) {
+      await _addMatches(matches, field, IndexRelationKind.IS_REFERENCED_BY,
+          MatchKind.REFERENCE);
+    }
     // getter
     if (getter != null) {
       await _addMatches(
@@ -288,6 +290,9 @@ class _ImportElementReferencesVisitor extends RecursiveAstVisitor {
   }
 
   @override
+  visitImportDirective(ImportDirective node) {}

[Brian Wilkerson, 2016/03/10 21:08:14]

Do we need to do the equivalent for export directives somewhere?

+
+  @override
   visitSimpleIdentifier(SimpleIdentifier node) {
     if (node.inDeclarationContext()) {
       return;