Mark deadcode for gcov

sql/ha_heap.cc

@@ -129,7 +129,7 @@ handler *ha_heap::clone(MEM_ROOT *mem_root)
   handler *new_handler= get_new_handler(table, mem_root, table->s->db_type);
   if (new_handler && !new_handler->ha_open(file->s->name, table->db_stat,
                                            HA_OPEN_IGNORE_IF_LOCKED))
-    return new_handler;
+    return new_handler; /* purecov: inspected */
   return NULL;
 }
 

sql/opt_range.cc

@@ -1138,9 +1138,9 @@ int QUICK_RANGE_SELECT::init_ror_merged_scan(bool reuse_handler)
       the storage engine calls in question happen to never fail with the 
       existing storage engines. 
     */
-    thd->net.report_error= 1;
+    thd->net.report_error= 1; /* purecov: inspected */
     /* Caller will free the memory */
-    goto failure;
+    goto failure;  /* purecov: inspected */
   }
   if (file->external_lock(thd, F_RDLCK))
     goto failure;