tree fb000b6bfd8507941c63b5c37622846ac6195a4d
parent bb1d557b23b6636638bf0b5919b3bf6c7bb0651b
author Joe Tsai <joetsai@digital-static.net> 1541035422 -0700
committer Joe Tsai <thebrokentoaster@gmail.com> 1541096907 +0000

internal/impl: support legacy unknown extension fields

The unknown fields in legacy messages is split across the XXX_unrecognized
field and also the XXX_InternalExtensions field. Implement support for
wrapping both fields and presenting it as if it were a unified set of
unknown fields.

Change-Id: If274fae2b48962520edd8a640080b6eced747684
Reviewed-on: https://go-review.googlesource.com/c/146517
Reviewed-by: Damien Neil <dneil@google.com>