[RFC] SPL & PCRE as always enabled in core

Hello internals, let's make ext/pcre and ext/spl first class core components and not allow to disable them. SPL: + influences a bunch of other stuff, and some extensions even behave different whether SPL is shared or built-in, this is hard to realize and understand for our users + was designed from the beginning to contain stuff that is standard in the oo world, so non standard stuff should be moved to specialized extensions like pecl/spl_types - yet another core component and special case - most important stuff could be moved to zend - but where to stop + well nothing in spl belongs into the engine, in the same way that nothing in ext/standard is in the engine. + zend engine has different license - i wouldn't allow the change + there is already too much in the engine, actually we should move stuff out of there - (oops/ouch, did i say this?) + spl only utilizes the engine, it does not influence modify anything there. + we want to be able to rely on SPL in run-tests.php PCRE: + used in a lot of stuff and influences stuff like SPL beep, go back to square one + is anybody not using this one, seriously? + other regex options suck + we want to be able to rely on PCRE in run-tests.php comments? Best regards, Marcus