vlib/v/checker/tests/import_mod_as_duplicate_err.vv:3:16: error: cannot import `json` as `json2` into a module with the same name
    1 | module json2
    2 | 
    3 | import json as json2
      |                ~~~~~
    4 | 
    5 | _ := json2.encode('foo')
vlib/v/checker/tests/import_mod_as_duplicate_err.vv:1:1: error: project must include a `main` module or be a shared library (compile with `v -shared`)
    1 | module json2
      | ^
    2 | 
    3 | import json as json2