Inline functions redo

[hexaredecimal]

I have followed your advice and implemented inline functions from the parser. I also added a function/method for creating hints. I had some time on my hands so I also decide to start working on the run command for qbe. I'm thinking of refactoring the code to a function to reduce the code size of the match expression.

[garritfra]

I get an Error: Expected token when running this function:

fn main() {
    println(greet("World"))
}

fn greet(name: string) = "Hello " + name

Could you add some tests to the tests/ directory, and to the parser?

I created a parser test that I used to debug the error:

#[test]
fn test_parse_inline_function() {
    let raw = "
    fn main() = 1 
    ";
    let tokens = tokenize(raw).unwrap();
    let tree = parse(tokens, Some(raw.to_string()), "".into());
    assert!(tree.is_ok())
}

I didn't have enough time to investigate this further though. Trying again later.

[garritfra]

Okay, it seems like the error is an issue with how the parse_expression function peeks tokens. I added a test stub to investigate this later.

[garritfra]

I think this is ready to merge. Thanks @hexaredecimal for your work, I love this feature!