add tag value of in support for api definition that has meta info

[hailaz]

#2060

[codecov-commenter]

Codecov Report

Patch coverage: 87.50% and project coverage change: +0.01 🎉

Comparison is base (15d88c2) 79.99% compared to head (84ae67d) 80.00%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2450      +/-   ##
==========================================
+ Coverage   79.99%   80.00%   +0.01%     
==========================================
  Files         599      599              
  Lines       49786    49834      +48     
==========================================
+ Hits        39824    39868      +44     
- Misses       8007     8009       +2     
- Partials     1955     1957       +2     

Flag	Coverage Δ
go-1.15-386	80.06% <87.50%> (+0.02%)	⬆️
go-1.15-amd64	80.04% <87.50%> (+0.03%)	⬆️
go-1.16-386	80.04% <87.50%> (+0.02%)	⬆️
go-1.16-amd64	80.05% <87.50%> (+0.03%)	⬆️
go-1.17-386	80.05% <87.50%> (+0.05%)	⬆️
go-1.17-amd64	80.05% <87.50%> (+0.05%)	⬆️
go-1.18-386	79.97% <87.50%> (+0.02%)	⬆️
go-1.18-amd64	79.98% <87.50%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
net/ghttp/ghttp_request_param.go	78.44% <ø> (ø)
net/ghttp/ghttp_request_param_request.go	91.17% <87.50%> (+1.01%)	⬆️
os/gfsnotify/gfsnotify_watcher_loop.go	84.87% <0.00%> (-0.85%)	⬇️

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[hailaz]

@gqcn 反射的版本已经改好了