tree bf4e7be907df63e7b0c0686f22d492c11e8c2ea1
parent c4051cd4ec0a2615a1d35d72f6191989a53d8de7
author Damien Neil <dneil@google.com> 1582138116 -0800
committer Damien Neil <dneil@google.com> 1582144539 +0000

reflect/protoreflect: add List.AppendMutable and Map.Mutable

Add methods to add a new, mutable message to a list or map, matching the
existing Message.Mutable.

These methods are purely a convenience, as each can be implemented in
terms of the existing interface.

Change-Id: I889c20fe37ea0f2a566555212e99e6378fb9fe1d
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/220117
Reviewed-by: Joe Tsai <joetsai@google.com>