Aliases should inherit the same shell configuration as the commands they're aliasing

[lmorg]

Describe the problem:
Let say you have a command called ls and you alias ll to point to ls -l. You then need to create an auto-completion et al for ll when in fact the act of creating an alias should manage all that for you.

Possible ways to implement:
Implementing it is easy. However what should happen if you !alias?

Additional context:
Item's that need to be covered:

• Auto-completion definition
• Method definition
• Summary definition
  ...any others?