the original CKTfndDev() was able to limit its search
for an instance with given name
to instances of a certain "type"
(this was a speed optimisation which is of no use anymore,
because we use a hashtable now)
the new CKTfndDev() does not consider "type"
thus, here in tfanal.c and noisean.c we have to check the "type"
after CKTfndDev() since we no longer can limit its search
to the given "type"