Not-yet-discussed in HotSpot style guide: C++ Lambdas

[Andrew Haley]

https://github.com/openjdk/jdk/blob/master/doc/hotspot-style.md says:

"Undecided Features

This list is incomplete; it serves to explicitly call out some
features that have not yet been discussed.  ...  Lambdas"

I can't see any reason to forbid Lambdas from a performance point of
view, and they can add to readability and maintainability in C++ for
the same reasons that they do in Java.

I have a job I'm working on (in the AArch64 back end) where Lambdas
would be very useful.  How about I give it a try, and I'll produce the
patch for review, as an initial proposal? Then anyone can put in their
2c worth.

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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