message: Fix flow for assert-support
diff: @@ -55,10 +55,11 @@ const getOperatorName = (operator: ?string, stack: string) => {
  };
  const operatorMessage = (operator: ?string, negator: boolean) =>
  - typeof operator === 'string' &&
  - (operator.startsWith('!') || operator.startsWith('=')
  + typeof operator === 'string'
  + ? operator.startsWith('!') || operator.startsWith('=')
  ? `${negator ? 'not ' : ''}to be (operator: ${operator}):\n`
  - : `${humanReadableOperators[operator] || operator} to:\n`);
  + : `${humanReadableOperators[operator] || operator} to:\n`
  + : '';
  const assertThrowingMatcherHint = (operatorName: string) => {
  return chalk.dim('assert') +
  