Tracking issue for overloaded `+=` operators (RFC 953) (feature augmented_assignments)

[nikomatsakis]

Tracking issue for RFC rust-lang/rfcs#953, which implements support for += operators.

cc @japaric

[nikomatsakis]

Rather bitrotted PR available here: #23171

[japaric]

Rather bitrotted PR available here: #23171

I'm working on a rebase of that PR

[solson]

It appears the implementation was merged in #28345 (but it's still unstable for now).

[vojtechkral]

Hi. What are the requirements to stabilize this feature?

[alexcrichton]

🔔 This issue is now entering its cycle final comment period to be stabilization in 1.8 🔔

Or at least the libs team is willing to stabilize the trait signatures. I believe the lang team is also thinking of having this in FCP for the 1.8 cycle as well (cc @rust-lang/lang)