add suggestions for variable declaration assignment RHS

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

Index: pkg/analysis_server/lib/src/services/completion/imported_computer.dart
diff --git a/pkg/analysis_server/lib/src/services/completion/imported_computer.dart b/pkg/analysis_server/lib/src/services/completion/imported_computer.dart
index b159ea8053664ff5daadc86985a2a50588f9c117..c032211ab62bd59f0d1e03df5a2fcaadc1386760 100644
--- a/pkg/analysis_server/lib/src/services/completion/imported_computer.dart
+++ b/pkg/analysis_server/lib/src/services/completion/imported_computer.dart
@@ -14,6 +14,7 @@ import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/resolver.dart';
+import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/generated/source.dart';
 
 /**
@@ -103,6 +104,16 @@ class _ImportedVisitor extends GeneralizingAstVisitor<Future<bool>> {
     return _addImportedElementSuggestions(typesOnly: true);
   }
 
+  @override
+  visitVariableDeclaration(VariableDeclaration node) {
+    Token equals = node.equals;
+    // Make suggestions for the RHS of a variable declaration
+    if (equals != null && request.offset >= equals.end) {
+      return _addImportedElementSuggestions();
+    }
+    return new Future.value(false);
+  }
+
   Future _addCombinatorSuggestions(Combinator node) {
     var directive = node.getAncestor((parent) => parent is NamespaceDirective);
     if (directive is NamespaceDirective) {