Synchronize GET_CLASS/GET_CALLED_CLASS opcodes with functions

These error conditions throw in the function implementations,
make the opcodes match.

Cleanup observer API and add JIT support

Remove specialization of SPEC(OBSERVER) handlers

Fix OSS Fuzz issue: yielding from an aborted generator

Fix undef var exception handling in JMP_NULL

We need to initialize the result variable in the exceptional
case as well.

Fixes oss-fuzz #25526.

Improve error messages mentioning parameters instead of arguments

Closes GH-5999

micro-optimization

Fixed bug #80049

Type checking may convert to refcounted values, so force freeing
of extra args.

Micro-optimization

Add zend_observer API

Closes GH-5857.

Co-authored-by: Nikita Popov <nikita.ppv@gmail.com>
Co-authored-by: Sammy Powers <sammyk@datadoghq.com>

Fix FE_FETCH_R_SIMPLE specialization

After a99d08b5d135fffa1d83b08b056e0080d295d863 the type can
include UNDEF. However, UNDEF can only reach FE_FREE, not FE_FETCH.
As such, simply i

Fix FE_FETCH_R_SIMPLE specialization

After a99d08b5d135fffa1d83b08b056e0080d295d863 the type can
include UNDEF. However, UNDEF can only reach FE_FREE, not FE_FETCH.
As such, simply ignore this type.

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Fix unused variable warning

Remove unnecessary cache_slot arguments

zend_verify_type_error_common() no longer needs the cache_slot,
so drop it there and from all users.

Improve type declarations for Zend APIs

Voidification of Zend API which always succeeded
Use bool argument types instead of int for boolean arguments
Use bool return type for functio

Improve type declarations for Zend APIs

Voidification of Zend API which always succeeded
Use bool argument types instead of int for boolean arguments
Use bool return type for functions which return true/false (1/0)
Use zend_result return type for functions which return SUCCESS/FAILURE as they don't follow normal boolean semantics

Closes GH-6002

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Fix pass by ref error for named params

Fix memory leak on unknown named param in iterator unpack

Fix passing of undef var to named arg

This needs to use the previously computed argument target.

Fix memory leak on unknown named param

Fix memory leak when yielding from non-iterable

Fix refcounting

Fix #79979: passing value to by-ref param via CUFA crashes

If a by-val send is not allowed, we must not do so. Instead we wrap
the value in a temporary reference.

Closes GH-6000

Fixed use-after-free introduced by aed1f785159e7c9e81da8f2e2e06df9a6ee0d809

micro-optimization

Fix nullsafe operator on reference

Dereference the value before checking the type. As the happy path
necessarily has to check for references, I'm not bothering to
delay the compariso

Fix nullsafe operator on reference

Dereference the value before checking the type. As the happy path
necessarily has to check for references, I'm not bothering to
delay the comparison.

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Fixed bug #79947

Move the FREE_OP for op_data out of the zend_binary_assign_op_dim_slow()
slow path, so it can be used by the other error path as well. This
makes ASSIGN_DIM_OP struc

Fixed bug #79947

Move the FREE_OP for op_data out of the zend_binary_assign_op_dim_slow()
slow path, so it can be used by the other error path as well. This
makes ASSIGN_DIM_OP structurally more similar to ASSIGN_DIM.

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