Eliminate unnecessary IS_INDIRECT guards

JIT for ASSIGN_DIM[_OP] with first IS_VAR + IS_INDIRECT operand

Improve error messages mentioning parameters instead of arguments

Closes GH-5999

Fixed memory leak

Tracin JIT support for FETCH_DIM_W/RW with IS_VAR + IS_INDIRECT first operand.

JIT for FETCH_DIM_W/RW insructions

JIT for IN_ARRAY instruction.

JIT for FETCH_LIST_R

Avoid unnecessary IP initiliaization on trace linking

Cleanup macro/function names

Load EX(opline) in one instuction if possible

Reorder DynAsm macros (no other changes)

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

JIT for FE_FETCH_R

Improved JIT for VERIFY_RETURN_TYPE

Minimal JIT support for JMP_NULL

Preallocate zval for unused result of internal function on CPU stack

Eliminate some EX_CALL_INFO() checks

Fixed nested init fcall guards.

Perform type guard checks before IS_UNDEF checks (check IS_UNDEF during deoptimization)

Don't load IP when entering inlined function

Avoid useless IP load

Replace "mov %eax, %ecx; shl $1, $ecx" by "lea (%eax,%eax), %ecx"