message: added more tracelog
diff: @@ -229,6 +229,8 @@ int sw_coro_create(zend_fcall_info_cache *fci_cache, zval **argv, int argc, zval
  int i;
  zend_vm_stack_init();
  + swTraceLog(SW_TRACE_COROUTINE, "Create coroutine id %d.", cid);
  +
  COROG.current_coro = (coro_task *) EG(vm_stack_top);
  zend_execute_data *call = (zend_execute_data *) (EG(vm_stack_top));
  EG(vm_stack_top) = (zval *) ((char *) call + TASK_SLOT * sizeof(zval));
  @@ -265,7 +267,7 @@ int sw_coro_create(zend_fcall_info_cache *fci_cache, zval **argv, int argc, zval
  {
  zend_execute_ex(call);
  coro_close(TSRMLS_C);
  - swTrace("Create the %d coro with stack. heap size: %zu\n", COROG.coro_num, zend_memory_usage(0));
  + swTraceLog(SW_TRACE_COROUTINE, "[CORO_END] Create the %d coro with stack. heap size: %zu\n", COROG.coro_num, zend_memory_usage(0));
  coro_status = CORO_END;
  }
  else
  