warning: group syntax is deprecated
  --> testdata/fields/groups/ranges.proto:9:14
   |
 9 |     optional group Bar = 1 {
   |              ^^^^^
   = note: group syntax is not available in proto3 or editions

warning: group syntax is deprecated
  --> testdata/fields/groups/ranges.proto:16:18
   |
16 |         optional group Baz = 9 {
   |                  ^^^^^
   = note: group syntax is not available in proto3 or editions

warning: group syntax is deprecated
  --> testdata/fields/groups/ranges.proto:24:9
   |
24 |         group Quux = 2 {
   |         ^^^^^
   = note: group syntax is not available in proto3 or editions

warning: group syntax is deprecated
  --> testdata/fields/groups/ranges.proto:33:14
   |
33 |     optional group Extn = 100 {
   |              ^^^^^
   = note: group syntax is not available in proto3 or editions

encountered 4 warnings
