"in" everywhere

[atommixz]

It would be nice if it were possible to use the "in" expression wherever
possible. Now it is only implemented for associative. arrays. (Weird).
Examples of how this could be used:
- Find string in string
- Search for a character in a string
- Search for an item in the array, array of characters, array of strings,
tuples, enum, structure
- what else?

In Python done something like this.

Here it would be useful to me
http://code.google.com/p/atommixz/source/browse/analyze-x86/analyze-x86.py
http://code.google.com/p/atommixz/source/browse/analyze-x86/analyzex86.d