Merge branch 'PHP-7.4'

diff --cc Zend/zend_compile.c
Simple merge

diff --cc Zend/zend_vm_def.h
Simple merge

diff --cc Zend/zend_vm_execute.h
index 8cbd2011c26980bda6ec9c3ba83ec042b26379ae,23d41dbdbd3bf19fa81a79e9f413dee9bed76b97..a2915ab64b82082e887275d6e999eb97d8e59125
--- 1/Zend/zend_vm_execute.h
--- 2/Zend/zend_vm_execute.h
+++ b/Zend/zend_vm_execute.h
@@@ -1837,7 -1862,11 +1837,11 @@@ static ZEND_OPCODE_HANDLER_RET ZEND_FAS
        int arg_num;
  
        SAVE_OPLINE();
-       args = get_zval_ptr_undef(opline->op1_type, opline->op1, BP_VAR_R);
+       if (opline->op1_type & (IS_VAR|IS_CV)) {
 -              args = get_zval_ptr_ptr_undef(opline->op1_type, opline->op1, &free_op1, BP_VAR_RW);
++              args = get_zval_ptr_ptr_undef(opline->op1_type, opline->op1, BP_VAR_RW);
+       } else {
 -              args = get_zval_ptr_undef(opline->op1_type, opline->op1, &free_op1, BP_VAR_R);
++              args = get_zval_ptr_undef(opline->op1_type, opline->op1, BP_VAR_R);
+       }
        arg_num = ZEND_CALL_NUM_ARGS(EX(call)) + 1;
  
  send_again: