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async function f() {
// Enough variables that SM will eventually decide to create a lookup table
// for this scope.
var q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
}
var g = newGlobal({newCompartment: true});
g.parent = this;
g.eval(`
var dbg = new Debugger(parent);
dbg.onEnterFrame = frame => {};
`);
// Fragile: Trigger Shape::hashify() for the shape of the environment in f
// under a call to GetGeneratorObjectForFrame from the Debugger.
for (let i = 0; i < 3; i++)
f();