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Test to see if there are any performance gains from using a single or multiple vars at the top of a function scope.

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var one = [];
var two = [];
var three = true;
var four = false;
var five = {
  test: 'one',
  testTwo: 'two'
};
var six = 'test';
var seven = null;
var eight;

var one = [],
    two = [],
    three = true,
    four = false,
    five = {
      test: 'one',
      testTwo: 'two'
    },
    six = 'test',
    seven = null,
    eight;

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