[Issue 20167] Issue warning when result discarded from strong pure function?

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20167

Nicholas Wilson <iamthewilsonator at hotmail.com> changed:

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--- Comment #3 from Nicholas Wilson <iamthewilsonator at hotmail.com> ---
> Why wasn't `nothrow` inferred for this trivial function where the source is as plain as day to the compiler?

FWIW the compiler does inference if the function is a template or the return
type is auto: that is 

auto f() {
    return 1;
}

and 

int f()() {
    return 1;
}

will trigger a warning when compiled with -w

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