[10?] RFR: 8193128: Reduce number of implementation classes returned by List/Set/Map.of()

[Andrej Golovnin]

Hi Claes,

> http://cr.openjdk.java.net/~redestad/8193128/open.02/

I think you should provide specialised implementations of the
#indexOf() and #lastIndexOf() methods in the classes List12 and ListN.
Using an iterator in List12 is an overkill. But even in ListN using a
simple for loop would be much better. In any case please take look at
the implementation of the #lastIndexOf() method in the
AbstractImmutableList class. It looks like a copy of
AbstractImmutableList#indexOf() and this is wrong.

Best regards,
Andrej Golovnin