message: fix MonoSynth test using incorrect Offline helper
diff: @@ -3,7 +3,7 @@ import { MonoSynth } from "./MonoSynth";
  import { InstrumentTest } from "test/helper/InstrumentTests";
  import { CompareToFile } from "test/helper/CompareToFile";
  import { expect } from "chai";
  -import { Offline } from "Tone";
  +import { Offline } from "test/helper/Offline";
  import { CHROME_AUDIO_RENDERING } from "test/helper/Supports";
  describe("MonoSynth", () => {
  @@ -82,7 +82,7 @@ describe("MonoSynth", () => {
  }).toDestination();
  synth.triggerAttack("C4", 0);
  }, 0.5).then((buffer) => {
  - // expect(buffer.getLastSoundTime()).to.be.closeTo(0.2, 0.01);
  + expect(buffer.getTimeOfLastSound()).to.be.closeTo(0.2, 0.01);
  });
  });
  