Adding upstream version 1.2+20240521.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/inputs/nested2/nested2.proto

@@ -0,0 +1,21 @@
+syntax = "proto3";
+
+package nested2;
+
+import "package.proto";
+
+message Game {
+    message Player {
+        enum Race {
+            human = 0;
+            orc = 1;
+        }
+    }
+}
+
+message Test {
+    Game game = 1;
+    Game.Player GamePlayer = 2;
+    Game.Player.Race GamePlayerRace = 3;
+    equipment.Weapon Weapon = 4;
+}

tests/inputs/nested2/package.proto

@@ -0,0 +1,7 @@
+syntax = "proto3";
+
+package nested2.equipment;
+
+message Weapon {
+
+}