Based on discussions and experimentation with @rwjblue, we’ve refined 
the rules to better meet the needs of the resolver from a variety of
scenarios.

We’ve also named the different module resolution patterns to make
discussions more meaningful.

Until we can fully explore the implications for these aliases within
editors and Node-based tooling, the Core Team has decided to remove 
this aspect of the RFC.

The Core Team decided that it would be most clear if addons invoked 
helpers and components with the same namespacing to be used by
consumers of the addon. Without a namespace, components could be 
single non-dasherized words, which is verboten. Furthermore, this
decision makes templates more portable - it will be easier for an 
addon to adopt a component from a consumer, for instance.

Thanks to @locks for his help here.