Method required_alignment

tests/all/custom_code_memory.rs:10–12

(&self)

    struct CustomCodePublish;
    impl CustomCodeMemory for CustomCodePublish {
        fn required_alignment(&self) -> usize {
            page_size()
        }

        fn publish_executable(&self, ptr: *const u8, len: usize) -> wasmtime::Result<()> {
            unsafe {