hiddenapi: Error message when superclass not found

Print an error message when building class hierarchy and unable to
find a superclass. This typically means that the provided classpath
is inconsistent (superclass missing), or the order of classes is
incorrect (superclass after child class).

Bug: 131289033
Test: compiles
Merged-In: Ia82755cc90008e974ce22dd2ccced81257ca90f9
Change-Id: Ia82755cc90008e974ce22dd2ccced81257ca90f9
(cherry picked from commit fe9181db92a778c4ef3c4d25e0302553bf970e26)