Fix for AnalysisContext.getElement() for enums.

pkg/analyzer/lib/src/generated/element.dart

Index: pkg/analyzer/lib/src/generated/element.dart
diff --git a/pkg/analyzer/lib/src/generated/element.dart b/pkg/analyzer/lib/src/generated/element.dart
index b900c6495dcdaa706779b161d072cab0254d06dc..91d8575f9d6a4d6335c30796bb02c4eea90ef9a6 100644
--- a/pkg/analyzer/lib/src/generated/element.dart
+++ b/pkg/analyzer/lib/src/generated/element.dart
@@ -2086,6 +2086,11 @@ class CompilationUnitElementImpl extends UriReferencedElementImpl implements Com
         return type as ClassElementImpl;
       }
     }
+    for (ClassElement type in _enums) {
+      if ((type as ClassElementImpl).identifier == identifier) {
+        return type as ClassElementImpl;
+      }
+    }
     return null;
   }