[BUG] using the using keyword inside a namespace with global functions results in code that does not compile

[farmerpiki]

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quick example for reproducing:

xf: () -> int = 42;
qq: namespace = {
using ::xf;
}

results in:

namespace qq {
using ::xf;
}

being declared before [[nodiscard]] auto xf() -> int; which makes the code not compile due to cpp1 requiring ordering.