zend_pass_function also has no name, so we might also be referring to an
internal function here. In this case, ZEND_NEW uses the zend_pass_function when
there is no constructor.
Fixes GH-16294
Closes GH-16301
`zend_uchar` suggests that the value is an ASCII character, but here,
it's about very small integers. This is misleading, so let's use a
C99 integer instead.
On all architectures currently supported by PHP, `zend_uchar` and
`uint8_t` are identical. This change is only about code readability.
There are two main motivations to this:
a) The logic for handling internal and userland observation can be unified.
b) Unwinding of observed functions on a bailout does notably not include observers. Even if users of observers were to ensure such handling themselves, it would be impossible to retain the relative ordering - either the user has to unwind all internal observed frames before the automatic unwinding (zend_observer_fcall_end_all) or afterwards, but not properly interleaved.
Signed-off-by: Bob Weinand <bobwei9@hotmail.com>
Properly use globals init/shutdown to allocate the observer_observe_function_names hashtable instead of attempting to do everything in the ini changed handler
