box_required      120 src/Bounds.h   Box box_required(Expr e, std::string fn,
box_required      123 src/Bounds.h   Box box_required(Stmt s, std::string fn,
box_required      150 src/SplitTuples.cpp             Box required = box_required(op, op->name);
box_required      120 src/StorageFolding.cpp         Box required = box_required(body, func.name());