For semantic function body state return can call multiple times

[mrLSD]

Description

For the semantic analyzer function_body function, there is the possibility to call multiple times return in case:

ast::BodyStatement::Expression(expression)  | ast::BodyStatement::Return(expression) => {...}

How to reproduce

1. Set AST entity: ast::BodyStatement::Return
2. Set AST entity: ast::BodyStatement::Expression

Expected behavior

🛑 Should add an error message to an error state

Actual behavior

No errors 🙆. Multiple-time return doesn't check.

[mrLSD]

Fixed in #7