I'm coming from functional-programming-land, so I'm quite fond of our
current scheme. These seems a bit surprising to me:
fn f() -> int { 3 }
fn g() -> int { 4 }
fn h() -> int {
f(); // result ignored
g(); // result returned
}
I'm probably pretty biased, but I don't think this is a complicated
rule to learn. The type checker will complain if you thought `fn f()
-> int { 3; }` returns `3`, so I expect it's something most newbies
will run into once or twice before they get the hang of it.
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