#5216 limit(%i*x + sqrt(x), x, inf) stays noun-form

[David Scherfgen]

Maxima returns a noun-form for this limit:

limit(%i*x + sqrt(x), x, inf);

It's caused by the complex leading term.
Could probably be solved by letting maybe-asksign check first whether the imagpart of the expression is provably non-zero and then return complex or imaginary.

[David Scherfgen]

Fixed by commit [d6f593].