ImportElement/ExportElement 'uri' should be the selected URI.

pkg/analyzer/lib/src/task/dart.dart

Index: pkg/analyzer/lib/src/task/dart.dart
diff --git a/pkg/analyzer/lib/src/task/dart.dart b/pkg/analyzer/lib/src/task/dart.dart
index 324ad51b81339490e991cf6c20a14586a75ef2ae..3fb63557fe6fc74168626628aef60fdd2c16b166 100644
--- a/pkg/analyzer/lib/src/task/dart.dart
+++ b/pkg/analyzer/lib/src/task/dart.dart
@@ -4151,25 +4151,30 @@ class ParseDartTask extends SourceBasedAnalysisTask {
 
     // Resolve all configurations and try to choose one.
     if (directive is NamespaceDirectiveImpl) {
-      Source configurationSource;
+      String configuredUri;
+      Source configuredSource;
       for (Configuration configuration in directive.configurations) {
-        Source source = _resolveUri(isImport, configuration.libraryUri,
-            configuration.libraryUri.stringValue);
+        String configurationUri = configuration.uri.stringValue;
+        Source source =
+            _resolveUri(isImport, configuration.uri, configurationUri);
         configuration.uriSource = source;
-        if (configurationSource == null) {
+        if (configuredSource == null) {
           String variableName =
               configuration.name.components.map((i) => i.name).join('.');
           String variableValue = context.declaredVariables.get(variableName);
           if (configuration.value != null &&
                   variableValue == configuration.value.stringValue ||
               variableValue == 'true') {
-            configurationSource = source;
+            configuredUri = configuration.uri.stringValue;
+            configuredSource = source;
           }
         }
       }
-      Source referencedSource = configurationSource ?? defaultSource;
-      directive.selectedSource = referencedSource;
-      return referencedSource;
+      String selectedUri = configuredUri ?? directive.uriContent;
+      Source selectedSource = configuredSource ?? defaultSource;
+      directive.selectedUri = selectedUri;
+      directive.selectedSource = selectedSource;
+      return selectedSource;
     }
     return defaultSource;
   }