Short circuiting idiom to if conversion

[chriselrod]

It would be great if we could have an option to automatically convert

b0 && foo()
b1 || bar()

into

if b0
    foo()
end
if !b1
    bar()
end

This is a style that is often preferred for being able to tell whether a branch is taken in code coverage, so it'd be great if it can be enforced.

[domluna]

i think this would be a good option to have

[ericphanson]

xref #382