Flaky test - TextBuffer IO when the file changes on disk does not fire duplicate change events when multiple changes happen on disk

[kuychaco]

https://travis-ci.org/atom/text-buffer/builds/265323723?utm_source=github_status&utm_medium=notification

Failures:
1) TextBuffer IO when the file changes on disk does not fire duplicate change events when multiple changes happen on disk
  Message:
    Expected [ 'will-change', 'did-change', 'did-change-text', 'will-change', 'did-change', 'did-change-text' ] to equal [ 'will-change', 'did-change', 'did-change-text' ].
  Stack:
    Error: Expected [ 'will-change', 'did-change', 'did-change-text', 'will-change', 'did-change', 'did-change-text' ] to equal [ 'will-change', 'did-change', 'did-change-text' ].
        at buffer.onDidChangeText (/home/travis/build/atom/text-buffer/spec/text-buffer-io-spec.js:885:32)
        at Function.module.exports.Emitter.simpleDispatch (/home/travis/build/atom/text-buffer/node_modules/event-kit/lib/emitter.js:25:14)
        at Emitter.module.exports.Emitter.emit (/home/travis/build/atom/text-buffer/node_modules/event-kit/lib/emitter.js:141:28)
        at TextBuffer.module.exports.TextBuffer.emitDidChangeTextEvent (/home/travis/build/atom/text-buffer/src/text-buffer.coffee:1811:16)
        at TextBuffer.module.exports.TextBuffer.finishLoading (/home/travis/build/atom/text-buffer/src/text-buffer.coffee:1706:8)
        at /home/travis/build/atom/text-buffer/src/text-buffer.coffee:1668:8
    
  Message:
    Error: Timeout - Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL.
  Stack:
    Error: Timeout - Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL.
        at ontimeout (timers.js:386:14)
        at tryOnTimeout (timers.js:250:5)
        at Timer.listOnTimeout (timers.js:214:5)