These tests are pointless (they don't even have anything to do
with resources, they just use get_resource_type() as a peculiar way
to create a string), and cause unnecessary IO dependency.
Access to undefined constants will now always result in an Error
exception being thrown.
This required quite a few test changes, because there were many
buggy tests that unintentionally used bareword fallback in combination
with error suppression.
E_RECOVERABLE errors are reported as "Catchable fatal error". This is
misleading, because they actually can't be caught via try-catch statements.
Therefore we change the wording to "Recoverable fatal error" as suggested by
Nikita.
Máté Kocsis