1.0.29.4: still more MAKE-ARRAY work
* Re-order the three MAKE-ARRAY deftransform, so that the more
specific ones are tried before the general one -- which allows stack
allocation in more the remaining cases that used to fail (I don't
know why I blamed VECTOR-FILL* for that before.)
* When constant splicing for initial-element in
TRANSFORM-MAKE-ARRAY-VECTOR didn't quote it, leading to lossiness
with symbols or lists as constant initial-elements. (Bug masked
earlier by the mis-ordering of the deftransforms.)
* In the final leg of TRANSFORM-MAKE-ARRAY-VECTOR also eliminate the
possible :INITIAL-ELEMENT keyword.
* When eliminating keywords from a MAKE-ARRAY call, don't flush the
lvars before checking that all of them can be eliminated. (Also
masked by the earlier mis-ordering.)