Merge branch 'PHP-7.4'

* PHP-7.4:
  Use run-time cache to avoid repeatable hash lookups in ZEND_DECLARE_CLASS_DELAYED

diff --cc Zend/zend_compile.c
Simple merge

diff --cc Zend/zend_compile.h
Simple merge

diff --cc Zend/zend_vm_def.h
Simple merge

diff --cc Zend/zend_vm_execute.h
Simple merge

diff --cc ext/opcache/Optimizer/compact_literals.c
Simple merge