inherit, override, overload

[Frank Benoit (keinfarbton)]

I posted about that on Nov. 13th already in "override and overload". But
I did not got any response. Apologies for posting again.

Since I first read about the mechanism, how D resolves overloads and
override, I think this is not the best solution.

See http://www.digitalmars.com/d/function.html
.... To consider the base class's functions in the overload resolution
process, use an AliasDeclaration

I want to suggest the following:
1.) change the overloading rule, so it does not hide the derived methods
in every case.
2.) make keyword "override" required for all overriding methods. Throw a
compiler error if the "override" keyword is missing.
3.) For consistency, require also "override" if implementing a interface
or abstract method.

Now overloading is possible without doing the alias and the code is more
 telling about which methods are used polymorph.

What do you think?