Can we locate the line number when react makes a warning like this "Unknown DOM property class. Did you mean className?"

There is no hint about which code made this warning.

return (str + '').replace(/([.?*+\^$\[\]\\(){}|-])/g, '\\$1');
    }
    beforeEach(function() {
      var ReactDefaultInjection = require('ReactDefaultInjection');
      ReactDefaultInjection.inject();
      var ReactDOMComponent = require('ReactDOMComponent');
      var ReactReconcileTransaction = require('ReactReconcileTransaction');
      var NodeStub = function(initialProps) {
        this._currentElement = {props: initialProps};
        this._rootNodeID = 'test';
      };
      Object.assign(NodeStub.prototype, ReactDOMComponent.Mixin);
      genMarkup = function(props) {