namespace foo {
    namespace bar {
         namespace baz {
             int qux = 42;
         }
    }
}

namespace fbz = foo::bar::baz;

void func() {
  int a = foo::bar::baz::qux;
  int b = fbz::qux;
}

/*
OUTPUT:
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      "detailed_name": "void func()",
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  "usr2type": [{
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      "uses": []
    }, {
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    }, {
      "usr": 11879713791858506216,
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        }],
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    }, {
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    }],
  "usr2var": [{
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      "qual_name_offset": 4,
      "short_name": "a",
      "hover": "int a = foo::bar::baz::qux",
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    }, {
      "usr": 7657277353101371136,
      "detailed_name": "int b",
      "qual_name_offset": 4,
      "short_name": "b",
      "hover": "int b = fbz::qux",
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    }]
}
*/