Merge commit '36bca61764984ff5395653cf8377ec5daa71b709' as 'libs/protobuf'

libs/protobuf/csharp/protos/unittest_issue6936_c.proto

@@ -0,0 +1,16 @@
+syntax = "proto3";
+
+import "unittest_issue6936_a.proto";
+import "unittest_issue6936_b.proto";
+
+package unittest_issues;
+
+option csharp_namespace = "UnitTest.Issues.TestProtos";
+
+// This file is used as part of a unit test for issue 6936
+// We don't need to use it, we just have to load it at runtime
+
+message Bar {
+    option (opt) = "bar";
+    Foo foo = 1;
+}