refactor: improve the macros example

Author: fogti

Cargo.toml

@@ -32,3 +32,7 @@ uhyve-interface = "0.1"
 default = []
 loader = ["log", "goblin", "plain"]
 kernel = []
+
+[[test]]
+name = "macros"
+required-features = ["kernel"]

examples/macros.rs renamed to tests/macros.rs

@@ -1,10 +1,5 @@
 //! This file tests if the macros defined by the hermit-entry crate,
 //! which affect linker .note entries, can actually be used.
 
-#[cfg(feature = "kernel")]
 hermit_entry::define_abi_tag!();
-
-#[cfg(feature = "kernel")]
 hermit_entry::define_entry_version!();
-
-fn main() {}