Pass correct op_info to zend_jit_fetch_dim()

JIT for FETCH_DIM_W/RW insructions

JIT for IN_ARRAY instruction.

JIT for FETCH_LIST_R

Cleanup macro/function names

If we don't know the return address, just escape to VM, instead of adding side exit.
Remove unnecessary exception checks.

JIT for FE_FETCH_R

JIT for FETCH_CONSTANT

Reorder switch cases for consistency between zend_jit() and zend_jit_trace()

JIT for FE_FETCH_R

Minimal JIT support for JMP_NULL

Eliminate some EX_CALL_INFO() checks

Update operands range information accoring to the taken branches and use this indormation to eliminate useless overflow checks.

Move AVOID_REFCOUNTING type info flag into a separate bit

JIT for MATCH and CASE_STRICT instructions

cleanup unused parameters

JIT for ZEND_ISSET_ISEMPTY_CV

Properly patch jmp tables

Add opcache.jit=tracing|function values, make on/yes/true synonym for tracing.

Implement named parameters

From an engine perspective, named parameters mainly add three
concepts:

* The SEND_* opcodes now accept a CONST op2, which is the
argument nam

Implement named parameters

From an engine perspective, named parameters mainly add three
concepts:

* The SEND_* opcodes now accept a CONST op2, which is the
argument name. For now, it is looked up by linear scan and
runtime cached.
* This may leave UNDEF arguments on the stack. To avoid having
to deal with them in other places, a CHECK_UNDEF_ARGS opcode
is used to either replace them with defaults, or error.
* For variadic functions, EX(extra_named_params) are collected
and need to be freed based on ZEND_CALL_HAS_EXTRA_NAMED_PARAMS.

RFC: https://wiki.php.net/rfc/named_params

Closes GH-5357.

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Remove more unused func_info fields

Check for EG(exception) after leaving function frame

Replace ZEND_JIT_TRACE_MAX_EXIT_COUNTERS constant by opcache.jit_max_exit_counters configuration directive

Automatically enable DASM_CHECKS in debug mode

Emit diagnostic on dasm_link() failure