How to use the esprima-fb.Syntax.CallExpression function in esprima-fb

} else {  // templateElement.value.raw === ''
      // Concatenat adjacent substitutions, e.g. `${x}${y}`. Empty templates
      // appear before the first and after the last element - nothing to add in
      // those cases.
      if (ii > 0 && !templateElement.tail) {
        // + between substitution and substitution
        utils.append(' + ', state);
      }
    }

    utils.move(templateElement.range[1], state);
    if (!templateElement.tail) {
      var substitution = node.expressions[ii];
      if (substitution.type === Syntax.Identifier ||
          substitution.type === Syntax.MemberExpression ||
          substitution.type === Syntax.CallExpression) {
        utils.catchup(substitution.range[1], state);
      } else {
        utils.append('(', state);
        traverse(substitution, path, state);
        utils.catchup(substitution.range[1], state);
        utils.append(')', state);
      }
      // if next templateElement isn't empty...
      if (templateElements[ii + 1].value.cooked !== '') {
        utils.append(' + ', state);
      }
    }
  }
  utils.move(node.range[1], state);
  utils.append(')', state);
  return false;

function shouldAddDisplayName(object) {
  if (object &&
      object.type === Syntax.CallExpression &&
      object.callee.type === Syntax.MemberExpression &&
      object.callee.object.type === Syntax.Identifier &&
      object.callee.object.name === 'React' &&
      object.callee.property.type === Syntax.Identifier &&
      object.callee.property.name === 'createClass' &&
      object.arguments.length === 1 &&
      object.arguments[0].type === Syntax.ObjectExpression) {
    // Verify that the displayName property isn't already set
    var properties = object.arguments[0].properties;
    var safe = properties.every(function(property) {
      var value = property.key.type === Syntax.Identifier ?
        property.key.name :
        property.key.value;
      return value !== 'displayName';
    });
    return safe;

visitSuperCallExpression.test = function(node, path, state) {
  if (state.superClass && node.type === Syntax.CallExpression) {
    var callee = node.callee;
    if (callee.type === Syntax.Identifier && callee.name === 'super'
        || callee.type == Syntax.MemberExpression
           && callee.object.name === 'super') {
      return true;
    }
  }
  return false;
};

visitCallSpread.test = function(node, path, state) {
  return (
    (
      node.type === Syntax.CallExpression ||
      node.type === Syntax.NewExpression
    ) &&
    node.arguments.length > 0 &&
    node.arguments[node.arguments.length - 1].type === Syntax.SpreadElement
  );
};

visitSuperCallExpression.test = function(node, path, state) {
  if (state.superClass && node.type === Syntax.CallExpression) {
    var callee = node.callee;
    if (callee.type === Syntax.Identifier && callee.name === 'super'
        || callee.type == Syntax.MemberExpression
           && callee.object.name === 'super') {
      return true;
    }
  }
  return false;
};

object.declarations.forEach(function(dec) {
    if (dec.type === Syntax.VariableDeclarator &&
        dec.id.type === Syntax.Identifier &&
        dec.init &&
        dec.init.type === Syntax.CallExpression &&
        dec.init.callee.type === Syntax.MemberExpression &&
        dec.init.callee.object.type === Syntax.Identifier &&
        dec.init.callee.object.name === 'React' &&
        dec.init.callee.property.type === Syntax.Identifier &&
        dec.init.callee.property.name === 'createClass' &&
        dec.init['arguments'].length === 1 &&
        dec.init['arguments'][0].type === Syntax.ObjectExpression) {

      var displayName = dec.id.name;
      catchup(dec.init['arguments'][0].range[0] + 1, state);
      append("displayName: '" + displayName + "',", state);
    }
  });
}

visitSuperCallExpression.test = function(node, path, state) {
  if (state.superClass && node.type === Syntax.CallExpression) {
    var callee = node.callee;
    if (callee.type === Syntax.Identifier && callee.name === 'super'
        || callee.type == Syntax.MemberExpression
           && callee.object.name === 'super') {
      return true;
    }
  }
  return false;
};

visitCallSpread.test = function(node, path, state) {
  return (
    (
      node.type === Syntax.CallExpression ||
      node.type === Syntax.NewExpression
    ) &&
    node.arguments.length > 0 &&
    node.arguments[node.arguments.length - 1].type === Syntax.SpreadElement
  );
};

visitSuperCallExpression.test = function(node, path, state) {
  if (state.superClass && node.type === Syntax.CallExpression) {
    var callee = node.callee;
    if (callee.type === Syntax.Identifier && callee.name === 'super'
        || callee.type == Syntax.MemberExpression
           && callee.object.name === 'super') {
      return true;
    }
  }
  return false;
};