Merge pull request #9 from rust-lang/meeting-ntoes

meeting notes

Author: lcnr

meetings/2021.03.02-near-future-stabilizations.md

@@ -1,4 +1,4 @@
-# cg meeting 2021-03-02 ([zulip thread](https://rust-lang.zulipchat.com/#narrow/stream/260443-project-const-generics/topic/meeting.202021-03-029))
+# cg meeting 2021-03-02 ([zulip thread](https://rust-lang.zulipchat.com/#narrow/stream/260443-project-const-generics/topic/meeting.202021-03-02))
 
 What can we stabilize without having to supply generic params to anon consts?
 

meetings/2021.03.09-unused-substs-impl.md

@@ -0,0 +1,7 @@
+# cg meeting 2021-03-02 ([zulip thread](https://rust-lang.zulipchat.com/#narrow/stream/260443-project-const-generics/topic/meeting.202021-03-09))
+
+Talked about how to implement the way to discard unused substs decided on in the [2021.02.16 meeting](2021.02.16-lazy-norm.md)
+
+Change `ConstKind::Unevaluated` to make the "default substs" optional.
+
+Requires us to be conservative for type flags which could be changed because of this. Hopefully not too bad perf wise.