Record the use of possibly-foreign enum types as map values.
Record the use of possibly-foreign enum types as map values.

jeremyletang/protobuf,qinlodestar/protobuf,adnaan/protobuf,alskjstl/protobuf,ekle/protoc-gen-goweb,jmptrader/protobuf-1,aoeu/protobuf,trdata/protobuf,ekle/protoc-gen-goweb_test,mwitkow-io/protobuf,tamird/protobuf-2,fuchsia-mirror/third_party-github.com-golang-protobuf,tamird/protobuf-2,trdata/protobuf,eduardiazf/protobuf,kung-foo/protobuf,golang/protobuf,daemonl/protobuf,golang/protobuf,ArtemTeleshev/go-protobuf,francoishill/protobuf,fuchsia-mirror/third_party-github.com-golang-protobuf,csuideal/protobuf,jrbarron/protobuf,skyportsystems/go-protobuf,skyportsystems/go-protobuf