Should `indirect-function' be preferred over `fboundp'?

[Ihor Radchenko]

Hi,

I have recently stumbled upon the common Elisp pattern
(when (fboundp func) (funcall func)) failing.

This is happening when a symbol is declared as function alias to
non-existing function:

(defalias 'yant/foo 'yant/bar)
(fboundp 'yant/foo) ; => t
(funcall 'yant/foo) ; => ERROR: Symbol function definition is void: yant/foo

In contrast, `indirect-function' does a better job determining whether a
given symbol can be called as a function:

(indirect-function 'yant/foo) ; => nil

Is it something widely known?
Is it something to worry about?
(I can see that `fboundp' is used all over Emacs git sources, while
`indirect-function' is rarely used)

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
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