Fix fourslash test

Author: ahejlsberg

tests/cases/fourslash/completionListEnumMembers.ts

@@ -16,7 +16,7 @@ verify.memberListCount(2);
 
 
 goTo.marker('typeReference');
-verify.memberListCount(0);
+verify.memberListCount(2);
 
 goTo.marker('enumValueReference');
 verify.memberListContains("toString");