Fix GH-8661: Nullsafe in coalesce triggers undefined variable warning

Closes GH-8690

Make vm_interrupt and timed_out atomic (#8327)

This is done by adding a new zend_atomic_bool type. The type
definition is only available for compiler alignment and size info; it
shou

Make vm_interrupt and timed_out atomic (#8327)

This is done by adding a new zend_atomic_bool type. The type
definition is only available for compiler alignment and size info; it
should be treated as opaque and only the zend_atomic_bool_* family of
functions should be used.

Note that directly using atomic_bool is complicated. All C++ compilers
stdlibs that I checked typedef atomic_bool to std::atomic<bool>, which
can't be used in an extern "C" section, and there's at least one usage
of this in core, and probably more outside of it.

So, instead use platform specific functions, preferring compiler
intrinsics.

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JIT: Fix array clobbering by user error handler

Fixes oss-fuzz #46336

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
JIT: Fix array clobbering by user error handler

JIT: Fix array clobbering by user error handler

Fixes oss-fuzz #46336

Merge branch 'PHP-8.1'

* PHP-8.1:
Fix memory leak

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Fix memory leak

Fix memory leak

Fixes oss-fuzz #44222

Remove JMPZNZ opcode

While JMPZNZ can avoid execution of a separate JMP opcode in some
cases, it also prevents smart branch optimization, so creating
JMPZNZ may actually have a negat

Remove JMPZNZ opcode

While JMPZNZ can avoid execution of a separate JMP opcode in some
cases, it also prevents smart branch optimization, so creating
JMPZNZ may actually have a negative effect. It also adds additional
complexity for optimizations.

Drop JMPZNZ in favor of JMPZ+JMP or JMPNZ+JMP.

Closes GH-7857.

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micro-optimization

Reset Bucket->key of deleted HastTable elemets to NULL.

This allows elimination of some Z_ISUNDEF(Bucket->val) checks.

Avoid useless symbol table reattaching on retutn from an included op_array

Don't execute INCLUDE for empty op_arrays.

Don't call zend_attach/detach_symbol_table() for op_arrays without local variables

Merge branch 'PHP-8.1'

* PHP-8.1:
Fix array clobbering by user error handler

Fix array clobbering by user error handler

Fixes oss-fuzz #42363

Merge branch 'PHP-8.1'

* PHP-8.1:
Move common code into helper

Move common code into helper

Merge branch 'PHP-8.1'

* PHP-8.1:
Combine ADDREF/DELREF

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Combine ADDREF/DELREF

Combine ADDREF/DELREF

Merge branch 'PHP-8.1'

* PHP-8.1:
Fix array clobering by user error handler

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Fix array clobering by user error handler

Fix array clobering by user error handler

Fixes oss-fuzz #42234

ZEND_INIT_FCALL is only produced when function exists at compile time (#7728)