update relevance for named param suggestions

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

Index: pkg/analysis_server/lib/src/services/completion/arglist_contributor.dart
diff --git a/pkg/analysis_server/lib/src/services/completion/arglist_contributor.dart b/pkg/analysis_server/lib/src/services/completion/arglist_contributor.dart
index 0dac5208245495088180eec248dc4b7392db861f..56a6d73c73a8745a07300acddc5c1a5e0fb52f62 100644
--- a/pkg/analysis_server/lib/src/services/completion/arglist_contributor.dart
+++ b/pkg/analysis_server/lib/src/services/completion/arglist_contributor.dart
@@ -19,7 +19,7 @@ void _addNamedParameterSuggestion(
     DartCompletionRequest request, List<String> namedArgs, String name) {
   if (name != null && name.length > 0 && !namedArgs.contains(name)) {
     request.addSuggestion(new CompletionSuggestion(
-        CompletionSuggestionKind.NAMED_ARGUMENT, DART_RELEVANCE_PARAMETER,
+        CompletionSuggestionKind.NAMED_ARGUMENT, DART_RELEVANCE_NAMED_PARAMETER,
         '$name: ', name.length + 2, 0, false, false));
   }
 }