Defer

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Implement the defer expression.

• Defer returns Unit btw.

  
  fn print_at_end(): Unit => "We have ended".println()

fn main(): Unit => { defer print_at_end() println("hello, world") () }

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A nearly complete implementation has been done. The only place where defer does not work is for variable declarations.

val c = defer 10 (* c will get have type unit *)

Honestly I don't see a use case for this but in order to allow the language to flow I'll have to implement it.

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Fully implemented and test. Feature finalized in commit 7bd17c3