completions in map literals

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

Index: pkg/analysis_server/lib/src/services/completion/optype.dart
diff --git a/pkg/analysis_server/lib/src/services/completion/optype.dart b/pkg/analysis_server/lib/src/services/completion/optype.dart
index 5bb865d18556b6e15a5a1fc7936b3aea9d7606cc..72c6e2218e2a75efd4b9a7288470c3f9da6337ea 100644
--- a/pkg/analysis_server/lib/src/services/completion/optype.dart
+++ b/pkg/analysis_server/lib/src/services/completion/optype.dart
@@ -400,7 +400,7 @@ class _OpTypeAstVisitor extends GeneralizingAstVisitor {
   }
 
   @override
-  void visitListLiteral(ListLiteral node) {
+  void visitMapLiteralEntry(MapLiteralEntry node) {
     optype.includeReturnValueSuggestions = true;
     optype.includeTypeNameSuggestions = true;
   }
@@ -512,7 +512,7 @@ class _OpTypeAstVisitor extends GeneralizingAstVisitor {
   }
 
   @override
-  visitTypeArgumentList(TypeArgumentList node) {
+  void visitTypeArgumentList(TypeArgumentList node) {
     NodeList<TypeName> arguments = node.arguments;
     for (TypeName typeName in arguments) {
       if (identical(entity, typeName)) {
@@ -523,6 +523,12 @@ class _OpTypeAstVisitor extends GeneralizingAstVisitor {
   }
 
   @override
+  void visitTypedLiteral(TypedLiteral node) {
+    optype.includeReturnValueSuggestions = true;
+    optype.includeTypeNameSuggestions = true;
+  }
+
+  @override
   void visitTypeName(TypeName node) {
     // The entity won't be the first child entity (node.name), since
     // CompletionTarget would have chosen an edge higher in the parse tree.  So