third_party/v8/test/mjsunit/es6/regress/regress-2681.js

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// Flags: --expose-gc --noincremental-marking

// Check that we are not flushing code for generators.

function flush_all_code() {
  // Each GC ages code, and currently 6 gcs will flush all code.
  for (var i = 0; i < 10; i++) gc();
}

function* g() {
  yield 1;
  yield 2;
}

var o = g();
assertEquals({ value: 1, done: false }, o.next());

flush_all_code();

assertEquals({ value: 2, done: false }, o.next());
assertEquals({ value: undefined, done: true }, o.next());