<div ng-include="'item.html'"
     ng-controller="ItemController"
     onload="item = rightItem">
</div>

$scope.dataHolder = {};

$scope.dataHolder.leftItem = items.leftItem;
$scope.dataHolder.rightItem = items.rightItem;

<div ng-include="'item.html'"
  ng-if="true"
  onload="item = rightItem">
</div>
<div ng-include="'item.html'"
  ng-if="true"
  onload="item = leftItem">
</div>

.directive('ngIncludeTemplate', function() {
  return {
    templateUrl: function(elem, attrs) { return attrs.ngIncludeTemplate; },
    restrict: 'A',
    scope: {
      'ngIncludeVariables': '&'
    },
    link: function(scope, elem, attrs) {
      var vars = scope.ngIncludeVariables();
      Object.keys(vars).forEach(function(key) {
        scope[key] = vars[key];
      });
    }
  }
})

<div ng-include-template="'item.html'" ng-include-variables="{ item: 'whatever' }"></div>
<div ng-include-template="'item.html'" ng-include-variables="{ item: variableWorksToo }"></div>

.directive(
  'ngIncludeTemplate'
  () ->
    {
      templateUrl: (elem, attrs) -> attrs.ngIncludeTemplate
      restrict: 'A'
      scope: {
        'ngIncludeVariables': '&'
      }
      link: (scope, elem, attrs) ->
        vars = scope.ngIncludeVariables()
        for key, value of vars
          scope[key] = value
    }
)

<div ng-include='myFile.html' ng-init="myObject = myCtrl.myObject; myOtherObject=myCtrl.myOtherObject"/>

.directive('ngIncludeTemplate', function() {
  return {
    templateUrl: function(elem, attrs) { return attrs.ngIncludeTemplate; },
    restrict: 'A',
    scope: {
      'ngIncludeVariables': '&'
    },
    link: function(scope, elem, attrs) {
      var cache = scope.ngIncludeVariables();
      Object.keys(cache).forEach(function(key) {
        scope[key] = cache[key];
      });

      scope.$watch(
        function() {
          var val = scope.ngIncludeVariables();
          if (angular.equals(val, cache)) {
            return cache;
          }
          cache = val;
          return val;
        },
        function(newValue, oldValue) {
          if (!angular.equals(newValue, oldValue)) {
            Object.keys(newValue).forEach(function(key) {
              scope[key] = newValue[key];
            });
          }
        }
      );

    }
  };
});

<script type="text/ng-template" id="partial">{{variable}}</script>

<div ng-include-template="'partial'" ng-include-variables="{variable: variable}"></div>

templateUrl: function(elem, attrs) { return attrs.ngIncludeTemplate; },

template: function(elem, attrs) { return document.getElementById(attrs.ngIncludeTemplate.split("'")[1]).innerHTML },