打招呼bug修复

app/Services/TencentImFriendService.php

@@ -126,6 +126,9 @@ class TencentImFriendService
         $apiResult = $this->requestApi($baseApiHost, $params);
         self::verifyApiResult($apiResult);
         if ($apiResult['ResultItem'][0]['ResultInfo'] || ($apiResult['ResultItem'][0]['ResultCode'] != 0)) {
+            if($apiResult['ResultItem'][0]['ResultInfo']=='Err_SNS_FriendAdd_Friend_Exist'){
+                return true;
+            }
             throw new TencentImFriendException('添加好友失败:  ' . $apiResult['ResultItem'][0]['ResultInfo']);
         }
         return $apiResult;