Boa 0.9.0

Boa is a Javascript lexer, parser and Just-in-Time compiler written in Rust. Currently, it has support for some of the language.
Documentation 
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use super::*;
use crate::{exec::Interpreter, forward, forward_val, realm::Realm};

#[test]
fn check_symbol_constructor_is_function() {
    let global = Value::new_object(None);
    let symbol_constructor = Symbol::create(&global);
    assert_eq!(symbol_constructor.is_function(), true);
}

#[test]
fn call_symbol_and_check_return_type() {
    let realm = Realm::create();
    let mut engine = Interpreter::new(realm);
    let init = r#"
        var sym = Symbol();
        "#;
    eprintln!("{}", forward(&mut engine, init));
    let sym = forward_val(&mut engine, "sym").unwrap();
    assert_eq!(sym.is_symbol(), true);
}

#[test]
fn print_symbol_expect_description() {
    let realm = Realm::create();
    let mut engine = Interpreter::new(realm);
    let init = r#"
        var sym = Symbol("Hello");
        "#;
    eprintln!("{}", forward(&mut engine, init));
    let sym = forward_val(&mut engine, "sym.toString()").unwrap();
    assert_eq!(sym.to_string(), "Symbol(Hello)");
}