mhevery/angular.js — comment on commit 824c8a256cd980e9630210f85c6287a2700b16bd
File:  line 0
By mhevery:

#1 was re-factored in later CLs so it is not an issue.

$injector(fn) is a way to specify the 'main' method of the application, I think in the future it may be used for delay execution while the modules are getting resolved. so it is conceptually different from the .invoke.