michael@0: // Don't assert.
michael@0: try {
michael@0:     var r = evalcx("new RegExp(\"\",\"\")", w);
michael@0:     var s = "";
michael@0:     (s.search(r))(x)
michael@0: } catch (e) {}
michael@0:     r = /()()()()/;
michael@0: try {
michael@0:     for (let x = 0; x < 3; ++x) {
michael@0:         gc()
michael@0:     }
michael@0: } catch (e) {}
michael@0: var w