@swift-ci create

We're not planning to do this.

Some comments from Erik Eckstein:

"This would be surprisingly complicated to implement - for a non-obvious reason: We use the old re-mangler to generated backward compatible ObjC runtime names. If we don’t have the enum vs. struct info in the mangling tree we couldn’t do this anymore. Instead we would have to reactivate the old mangler or do something very hacky. This would just be terrible....

This would not produce a more compact mangling, because we still would need one character to represent a nominal type (either sturct or enum). It would just free one character from the mangling operator namespace."