src/third_party/mozjs-45/js/src/jit-test/tests/gc/multi-03.js

/* Exercise the path where we want to collect a new compartment in the middle of incremental GC. */

var g1 = newGlobal();
var g2 = newGlobal();

schedulegc(g1);
schedulegc(g2);
gcslice(0); // Start IGC, but don't mark anything.
schedulegc(g1);
gcslice(1);
gcslice();