Codeview debug info directives for nested type records were previously emitted as a serialized set of bytes. They are now emitted as directives with inline comments.
Yes, it ended up being pretty easy. visitMemberRecordStream() passes the TypeRecordMapping instance to create a pipeline along with the deserializer. For now, the deserializer gets executed twice (once with TypeRecordMapping & once with TypeDumpVisitor) till TypeDumpVisitor is removed.