bug#65017: 29.1; Byte compiler interaction with cl-lib function objects, removes symbol-function

[Stefan Monnier]

>>    (let ((symbols-with-pos-enabled nil))
>>      (eq f (car cl--labels-convert-cache)))
> As far as the LAP peephole optimiser is concerned, eq commutes with unbind
> so that let-binding will vanish.

Hmm... so a bug in the optimizer because the new `eq` semantics breaks
a previous assumption  :-(

The positive side is that this optimization is less important for
lexbind code.


        Stefan