function filterToValidRuns(runs) {
  return runs
    .filter(run =>
      Number.isFinite(getNumericValue(run, 'first-contentful-paint'))
    )
    .filter(run => Number.isFinite(getNumericValue(run, 'interactive')));
}
@param {Array<LH.Result>} runs
@return {Array<LH.Result>}