Merge branch 'PHP-7.4'

diff --cc Zend/zend_API.c
Simple merge

diff --cc Zend/zend_builtin_functions.c
Simple merge

diff --cc Zend/zend_closures.c
Simple merge

diff --cc Zend/zend_compile.c
Simple merge

diff --cc Zend/zend_execute.h
Simple merge

diff --cc Zend/zend_execute_API.c
Simple merge

diff --cc Zend/zend_inheritance.c
Simple merge