pub const fn as_suffix(self) -> &'static str {
        match self {
            Self::Fast => "",
            Self::FastNoSignatures => "/no_sigs",
            Self::FastWithStorageLimit => "/storage_limit",
            Self::Legacy => "/legacy",
        }
    }
Optional prefix for `criterion` benchmark naming (including a starting `/`).
core/tests/vm-benchmark/src/vm.rs