Description:
------------
When running Zend\tests\bug40815.phpt on master 64 bit windows build, php crashes with the following error msg:

Stack area around _alloca memory reserver by this function is corrupted

and it points to zend/zend_api.c:2916

The backtrace:

 	php7ts_debug.dll!failwithmessage(void * retaddr, int crttype, int errnum, const char * msg) Line 248	C++
 	php7ts_debug.dll!_RTC_AllocaFailure(void * retaddr, _RTC_ALLOCA_NODE * pn, int num) Line 424	C++
 	php7ts_debug.dll!_RTC_CheckStackVars2(void * frame, _RTC_framedesc * v, _RTC_ALLOCA_NODE * allocaList) Line 184	C++
>	php7ts_debug.dll!zend_is_callable_check_class(_zend_string * name, _zend_fcall_info_cache * fcc, int * strict_class, char * * error, void * * * tsrm_ls) Line 2916	C
 	php7ts_debug.dll!zend_is_callable_check_func(int check_flags, _zval_struct * callable, _zend_fcall_info_cache * fcc, int strict_class, char * * error, void * * * tsrm_ls) Line 2994	C
 	php7ts_debug.dll!zend_is_callable_ex(_zval_struct * callable, _zend_object * object, unsigned int check_flags, _zend_string * * callable_name, _zend_fcall_info_cache * fcc, char * * error, void * * * tsrm_ls) Line 3256	C
 	php7ts_debug.dll!zend_is_callable(_zval_struct * callable, unsigned int check_flags, _zend_string * * callable_name, void * * * tsrm_ls) Line 3403	C
 	php7ts_debug.dll!zif_set_exception_handler(unsigned int param_count, _zval_struct * return_value, void * * * tsrm_ls) Line 1648	C
 	php7ts_debug.dll!ZEND_DO_FCALL_SPEC_HANDLER(_zend_execute_data * execute_data, void * * * tsrm_ls) Line 596	C
 	php7ts_debug.dll!execute_ex(_zend_execute_data * execute_data, void * * * tsrm_ls) Line 354	C
 	php7ts_debug.dll!zend_execute(_zend_op_array * op_array, _zval_struct * return_value, void * * * tsrm_ls) Line 384	C
 	php7ts_debug.dll!zend_execute_scripts(int type, void * * * tsrm_ls, _zval_struct * retval, int file_count, ...) Line 1320	C
 	php7ts_debug.dll!php_execute_script(_zend_file_handle * primary_file, void * * * tsrm_ls) Line 2564	C
 	php.exe!do_cli(int argc, char * * argv, void * * * tsrm_ls) Line 981	C
 	php.exe!main(int argc, char * * argv) Line 1358	C


Test script:
---------------
Zend\tests\bug40815.phpt