UMD distributions have anonymous modules

[alexeagle]

Under Bazel, our devserver expects to be able to concatenate all the JS, meaning we can't rely on path information in XHRs to know what name each module has.

I fixed this for Angular in angular/angular@82e4923
We should do the same thing for material distributions.

(Note, users could instead use some other loader like system.js to bring in UMD dependencies that don't provide a name, but this is a bunch of extra complexity. We should make the Bazel use case simple for libraries we control.)

[angular-automatic-lock-bot]

This issue has been automatically locked due to inactivity.
Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}