Previously, splitV would assume that if you were splitting a value val into something of type [inf][each], then val must be a stream of type of [inf * each] (i.e., of type [inf]). This is not true in the corner case where each equals 0, however. In that case, val is of type [0], which is a word, not a stream. As such, we need to ensure that we do not call fromSeq on val, which crashes if val is not a stream or sequence.
Previously,
splitVwould assume that if you were splitting a valuevalinto something of type[inf][each], thenvalmust be a stream of type of[inf * each](i.e., of type[inf]). This is not true in the corner case whereeachequals0, however. In that case,valis of type[0], which is a word, not a stream. As such, we need to ensure that we do not callfromSeqonval, which crashes ifvalis not a stream or sequence.Fixes https://github.com/GaloisInc/cryptol/issues/1749.