Resynthesize top-level accessors and variables from Kernel.

pkg/analyzer/test/src/summary/element_text.dart

Index: pkg/analyzer/test/src/summary/element_text.dart
diff --git a/pkg/analyzer/test/src/summary/element_text.dart b/pkg/analyzer/test/src/summary/element_text.dart
index c7897de4f32758a5f1824bb48b24292a6075658e..d6b0ca2c823dc2795863c8b196eb5c0d6090c990 100644
--- a/pkg/analyzer/test/src/summary/element_text.dart
+++ b/pkg/analyzer/test/src/summary/element_text.dart
@@ -681,6 +681,14 @@ class _ElementWriter {
       PropertyInducingElement variable = e.variable;
       expect(variable, isNotNull);
       expect(variable.isSynthetic, isTrue);
+
+      var variableEnclosing = variable.enclosingElement;
+      if (variableEnclosing is CompilationUnitElement) {
+        expect(variableEnclosing.topLevelVariables, contains(variable));
+      } else if (variableEnclosing is ClassElement) {
+        expect(variableEnclosing.fields, contains(variable));
+      }
+
       if (e.isGetter) {
         expect(variable.getter, same(e));
         if (variable.setter != null) {
@@ -730,7 +738,7 @@ class _ElementWriter {
     expect(e.isAsynchronous, isFalse);
     expect(e.isGenerator, isFalse);
 
-    if (e.isAbstract) {
+    if (e.isAbstract || e.isExternal) {
       buffer.writeln(';');
     } else {
       buffer.writeln(' {}');