Design for collections upgrades

[Ola Bini]

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> A better argument against making filter() return a stream is that it's
> unexpected. The verb "filter" means "filter", not "create a stream
> that when later evaluated will filter." You can imagine users putting
I personally am a fan of this argument. I ended up using the past tense
for lazy sequences in Ioke for this specific reason. It becomes
immediately obvious if you're in strict or lazy-land based on the tense
of the method names. To Brian's argument, the type system will tell you
too, but that's not always apparent from reading a specific line of code.

Cheers
- -- 
 Ola Bini (http://olabini.com)
  Ioke - JRuby - ThoughtWorks

 "Yields falsehood when quined" yields falsehood when quined.

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