#3279 limit incorrect with domain:complex

[Robert Dodier]

From sage-support 2017-01-22 "This limit seems to be wrong":

(%i1) domain;
(%o1)                                real
(%i2) limit((2^(2*x+1)+(2^x*x^100)^(3/2))/(4^x-100*2^x),x,inf);
(%o2)                                  2
(%i3) domain:complex $
(%i4) limit((2^(2*x+1)+(2^x*x^100)^(3/2))/(4^x-100*2^x),x,inf);
(%o4)                                minf

Declaring x to be real doesn't help:

(%i1) declare (x, real);
(%o1)                                done
(%i2) domain:complex;
(%o2)                               complex
(%i3) limit((2^(2*x+1)+(2^x*x^100)^(3/2))/(4^x-100*2^x),x,inf);
(%o3)                                minf

Working with Maxima 5.39.0 + Clisp 2.49 + Ubuntu 14.04.

[Barton Willis]

Fixed by Commit [37f222]. And this is a test in rtest_limit_extra.