show reference about word under cursor under scope of all project files

Hi,is there a method show all references about the word under current cursor in a new window?

or a plugin more easy to use than cscope and support golang

I know four way,

1. [I, 

2. grep then :cope

3.just cscope

4.# or *

but it seems method one just work in the same file, not project.

method two works well, but too slow

method three works well, but only suppor c and c++, suport golang?

method four, jesus, cursor will move.

is there a method show all references about the word under current cursor in a new window?

or a plugin more easy to use than cscope and support golang

Regards

Xie

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