Clean up some supposedly failing tests

pkg/analyzer/lib/src/dart/ast/utilities.dart

Index: pkg/analyzer/lib/src/dart/ast/utilities.dart
diff --git a/pkg/analyzer/lib/src/dart/ast/utilities.dart b/pkg/analyzer/lib/src/dart/ast/utilities.dart
index e3e379f02c00eeb57994605db6ada8deac9ad451..7b715e206729371dc35f874fcc217d69e716623e 100644
--- a/pkg/analyzer/lib/src/dart/ast/utilities.dart
+++ b/pkg/analyzer/lib/src/dart/ast/utilities.dart
@@ -2501,6 +2501,9 @@ class ElementLocator_ElementMapper extends GeneralizingAstVisitor<Element> {
       node.element;
 
   @override
+  Element visitExportDirective(ExportDirective node) => node.element;
+
+  @override
   Element visitFunctionDeclaration(FunctionDeclaration node) => node.element;
 
   @override
@@ -2532,6 +2535,8 @@ class ElementLocator_ElementMapper extends GeneralizingAstVisitor<Element> {
         if (element is LibraryElement) {
           return element.definingCompilationUnit;
         }
+      } else if (grandParent is LibraryDirective) {
+        return grandParent.element;
       }
     }
     return node.bestElement;