[bug] ``return`` does not accept variables

[vurvdev]

Describe the bug
If you try and return with anything but a literal, it will fail, with the token seemingly being skipped or just not existing at all.

To Reproduce

function foo() {
	let bar = 55;
	return bar; // FAIL: "Expected ; after return", as it finds the semicolon instead of the identifier in the parser
};

Expected behaviour
Return works with identifiers.

Additional context
The tokenizer works fine. Inspecting the output tokens gives proper identifiers and semicolons. This is something incredibly cursed with the parser.