I couldn't resist. :)
This should work once we're done with #1513210: Meta: Start converting module provided classes to PSR-0.
Right now this fails with "Fatal error: Class 'DrupalDefaultEntityController' not found in ../core/modules/node/node.module on line 4143"
I am hopeful that the front page works once the entity stuff is all (or at least user and node and obviously entity.module) converted to PSR-0.
Note that we should also remove modules/system/tests/registry.test with this.