Fix regression in generating message size defines (issue #172).

This bug was triggered when:
1. A .proto file included another .proto from a different directory.
2. The another .proto has an associated .options file.

Added regression test for the same.

1 files changed, 6 insertions, 0 deletions

diff --git a/tests/regression/issue_172/test.proto b/tests/regression/issue_172/test.proto
new file mode 100644
index 00000000..fbd97be5
--- /dev/null
+++ b/tests/regression/issue_172/test.proto
@@ -0,0 +1,6 @@
+syntax = "proto2";
+import "submessage.proto";
+
+message testmessage {
+ optional submessage sub = 1;
+}