warning: group syntax is deprecated
  --> testdata/parser/range/group.proto:8:14
   |
 8 |     optional group Bar = 1 {
   |              ^^^^^
   = note: group syntax is not available in proto3 or editions

warning: group syntax is deprecated
  --> testdata/parser/range/group.proto:15:18
   |
15 |         optional group Baz = 9 {
   |                  ^^^^^
   = note: group syntax is not available in proto3 or editions

warning: group syntax is deprecated
  --> testdata/parser/range/group.proto:23:9
   |
23 |         group Quux = 2 {
   |         ^^^^^
   = note: group syntax is not available in proto3 or editions

warning: group syntax is deprecated
  --> testdata/parser/range/group.proto:32:14
   |
32 |     optional group Extn = 100 {
   |              ^^^^^
   = note: group syntax is not available in proto3 or editions

encountered 4 warnings
