rust-lang/rust — pull request #20070 by aturon (2014-12-20 08:37:54+00:00)
Title: Stabilize clone

This patch marks `clone` stable, as well as the `Clone` trait, but
leaves `clone_from` unstable. The latter will be decided by the beta.

The patch also marks most manual implementations of `Clone` as stable,
except where the APIs are otherwise deprecated or where there is
uncertainty about providing `Clone`.

r? @alexcrichton