Runner does not handle division expression

[ghost]

The lexer and parser both handle the division expression correctly and there are existing tests that demonstrate this. The runner fails to handle division with the error:
Error: I don't recognize expression/literal type ArithmeticExpressionDivideNode

To test this, add the following to assignment.json:

,  {
    "title": "AssignmentWithDivision",
    "tags": "Tag",
    "body": "Test Line\n<<set $testvar to 100 / 5>>\nTest Line2",
    "position": {
      "x": 449,
      "y": 252
    },
    "colorID": 0
  }

Add the following to test_runner.js:

  it('Can evaluate a numeric assignment with division expression', () => {
    runner.load(assignmentYarnData);
    const run = runner.run('AssignmentWithDivision');

    let value = run.next().value;
    expect(value).to.deep.equal(new bondage.TextResult('Test Line', value.data, value.lineNum));

    expect(runner.variables.get('testvar')).to.be.undefined;

    value = run.next().value;
    expect(value).to.deep.equal(new bondage.TextResult('Test Line2', value.data, value.lineNum));

    expect(runner.variables.get('testvar')).to.equal(100 / 5);

    expect(run.next().done).to.be.true;
  });

Run the tests.

[ghost]

The source of the problem resides in the parser\node.js file

  ArithmeticExpressionDivideNode: class {
    constructor(expression1, expression2) {
      this.type = 'ArithmeticExpressionDivideNode';
      this.expression1 = expression1;
      this.expression2 = expression2;
    }
  },

The definition of ArithmeticExpressionDivideNode is missing "extends Expression".
Should be:

  ArithmeticExpressionDivideNode: class extends Expression {
    constructor(expression1, expression2) {
      super();
      this.type = 'ArithmeticExpressionDivideNode';
      this.expression1 = expression1;
      this.expression2 = expression2;
    }
  },