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Events emitted during test reports events emitted during suite

See original GitHub issue

Consider following contract:

contract Emitter {
    event Called();
    function emit() {
        Called();
    }
}

And tests:

contract('Emitter', function(accounts) {
  it('should emit Called event and fail (shows 1 emitted)', function(done) {
    var emitter = Emitter.deployed();
    emitter.emit().then(function() {
      assert.isTrue(false);
    }).then(done).catch(done);
  });
  it('should emit Called event', function(done) {
    var emitter = Emitter.deployed();
    emitter.emit().then(function() {
      done();
    }).catch(done);
  });
  it('should emit Called event 2', function(done) {
    var emitter = Emitter.deployed();
    emitter.emit().then(function() {
      done();
    }).catch(done);
  });
  it('should emit Called event and fail 2 (shows 3 emitted)', function(done) {
    var emitter = Emitter.deployed();
    emitter.emit().then(function() {
      assert.isTrue(false);      
    }).then(done).catch(done);
  });
  it('should emit Called event and fail 3 (shows 1 emitted)', function(done) {
    var emitter = Emitter.deployed();
    emitter.emit().then(function() {
      assert.isTrue(false);      
    }).then(done).catch(done);
  });
});

Output:

Contract: Emitter
    1) should emit Called event and fail (shows 1 emitted)
    Events emitted during test:
    ---------------------------
    Called()
    ---------------------------
    ✓ should emit Called event
    ✓ should emit Called event 2 (48ms)
    2) should emit Called event and fail 2 (shows 3 emitted)
    Events emitted during test:
    ---------------------------
    Called()
    Called()
    Called()
    ---------------------------
    3) should emit Called event and fail 3 (shows 1 emitted)
    Events emitted during test:
    ---------------------------
    Called()
    ---------------------------
  2 passing (8s)
  3 failing

As you can see, when 3rd test fails, it reports the events emitted between last failed test (exclusive) and current test (inclusive).