* Fix all hash checks that checked Bucket.arKey for NULL, when it was changed
to char[1], these checks should have been changed to Bucket.nKeyLength==0
* Support runtime declaration of func

* Fix all hash checks that checked Bucket.arKey for NULL, when it was changed
to char[1], these checks should have been changed to Bucket.nKeyLength==0
* Support runtime declaration of functions. I ended up changing the grammar
to catch top level functions vs. nested functions. The reason is simple -
if we don't have functions properly declared at compile-time, function calls
cannot be resolved at compile time, and have to be resolved at runtime, which
ends up being much much slower (without the optimizer, that is).
It's no biggy though, the grammar change isn't that bad.

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Cleanups, remove old ts code

Make token names uniform, they all begin with T_ now.

Thread safety patch. We're still not quite there but it compiles again, and
more logic has been implemented.

Support =unset as arguments

AiCount needs to be decreased here

- one more place which seems to have needed fixing. I don't have time to look
more into it. I hope we don't have anymore places which need fixing.

Better detection

Move Ai stuff before get_zval_*(), like Andi suggested. Fixes Sascha's huge
memory leak

- Fix various memory leaks.

Refcount bugfix

Minor optimization

This should take care of "this" for user-defined functions. It wasn't yet working
for built-in functions anyway, this one is coming soon.

This patch is a go. Not fully optimized yet, but working properly.
Prepatch tagged as BEFORE_STACK_PATCH.

Minor fixes:
missing zval_copy_ctor()
messed up AiCount fix

$GLOBALS support

Fix static assignment

Zend Library