sandboxed environment errors out

[jgeraerts]

I was trying to toy around with steel in a prototype I'm doing. Especially the sandboxed environment looked nice to me but it errors out when constructing.

A failing test demonstrating the issue:

  #[test]
    fn test_sandboxed_environment() {
        let mut engine = Engine::new_sandboxed();
        assert!(engine.compile_and_run_raw_program("(+ 1 1)").is_ok());
    }

---- steel_vm::engine::engine_api_tests::test_sandboxed_environment stdout ---- thread 'steel_vm::engine::engine_api_tests::test_sandboxed_environment' panicked at crates/steel-core/src/steel_vm/engine.rs:959:50: called Result::unwrap() on an Err value: SteelErr { repr: Repr { kind: FreeIdentifier, message: "Cannot reference an identifier before its definition: #%function-ptr-table", span: Some(0..0), stack_trace: None } } note: run with RUST_BACKTRACE=1 environment variable to display a backtrace