Add mocha describe/it support

[hellboy81]

Support for mocha's describe/it should be added:

For this code

describe('.myFunc()', function () {
  it('is a function', function() {
       // Current cursor position
      should.exist(sut.getList)
      sut.myFunc.should.be.a('function')
  })
})

should be shown

GLOBAL > myFunc > is a function

instead of

GLOBAL > anonymous function > anonymous function