Terminate with signal in case of an assert

Automated debugging is easier if the process terminates with a
signal instead of a regular `exit (code);` call, since in this
latter case the cause of error cannot be automatically backtraced.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

jerry-core/jrt/jrt-fatals.cpp

@@ -62,7 +62,14 @@ jerry_fatal (jerry_fatal_code_t code) /**< status code */
   }
 #endif /* !JERRY_NDEBUG */
 
-  exit (code);
+  if (code == ERR_FAILED_INTERNAL_ASSERTION)
+  {
+    abort ();
+  }
+  else
+  {
+    exit (code);
+  }
 } /* jerry_fatal */
 
 /**