Fix static variables in main script with file cache

If the script will be cached in SHM (!corrupted), then we cannot
allocate the static variables on the arena. Instead do the same
thing we do during normal persistence and allocate a map ptr slot.

Author: nikic

ext/opcache/zend_file_cache.c

@@ -1244,15 +1244,17 @@ static void zend_file_cache_unserialize_op_array(zend_op_array           *op_arr
                                                  zend_persistent_script  *script,
                                                  void                    *buf)
 {
-	if (!(script->corrupted)
-	 && op_array != &script->script.main_op_array) {
-		op_array->fn_flags |= ZEND_ACC_IMMUTABLE;
+	if (!script->corrupted) {
+		if (op_array != &script->script.main_op_array) {
+			op_array->fn_flags |= ZEND_ACC_IMMUTABLE;
+			ZEND_MAP_PTR_NEW(op_array->run_time_cache);
+		} else {
+			ZEND_ASSERT(!(op_array->fn_flags & ZEND_ACC_IMMUTABLE));
+			ZEND_MAP_PTR_INIT(op_array->run_time_cache, NULL);
+		}
 		if (op_array->static_variables) {
 			ZEND_MAP_PTR_NEW(op_array->static_variables_ptr);
-		} else {
-			ZEND_MAP_PTR_INIT(op_array->static_variables_ptr, NULL);
 		}
-		ZEND_MAP_PTR_NEW(op_array->run_time_cache);
 	} else {
 		op_array->fn_flags &= ~ZEND_ACC_IMMUTABLE;
 		if (op_array->static_variables) {