errinj: introduce ERROR_INJECT_TERMINATE() macro

It is conditional injection that terminates execution calling assert(0)
if given condition is true. It is quite useful since allows us to
emulate situations when instance is suddenly shutdown: due to sigkill
for example.

Needed for tarantool#5823

Author: Korablev77

src/lib/core/errinj.h

@@ -208,6 +208,7 @@ void errinj_set_with_environment_vars(void);
 #define ERROR_INJECT_RETURN(ID) ERROR_INJECT(ID, return -1)
 #define ERROR_INJECT_SLEEP(ID) ERROR_INJECT_WHILE(ID, usleep(1000))
 #define ERROR_INJECT_YIELD(ID) ERROR_INJECT_WHILE(ID, fiber_sleep(0.001))
+#define ERROR_INJECT_TERMINATE(ID) ERROR_INJECT(ID, assert(0))
 
 #if defined(__cplusplus)
 } /* extern "C" */