A StringEval should be evaluated once, not possibly multiple times if it has more than 1 children. This fixes https://github.com/mirah/mirah/issues/322 .
A StringEval should be evaluated once, not possibly multiple times if it has more than 1 children. This fixes https://github.com/mirah/mirah/issues/322 .

mirah/mirah,felixvf/mirah,felixvf/mirah,mirah/mirah,mirah/mirah,felixvf/mirah,mirah/mirah,felixvf/mirah