Merge branch 'PHP-7.4'

diff --cc Zend/zend_compile.h
Simple merge

diff --cc Zend/zend_execute_API.c
Simple merge

diff --cc Zend/zend_inheritance.c
Simple merge

diff --cc Zend/zend_interfaces.c
Simple merge

diff --cc Zend/zend_opcode.c
Simple merge