BUG/MINOR: hpack: return a compression error on invalid table size updates

RFC7541#6.3 mandates that an error is reported when a dynamic table size
update announces a size larger than the one configured with settings. This
is tested by h2spec using test "hpack/6.3/1".

This must be backported to 1.9 and possibly 1.8 as well.
2 files changed