Completed interop spec, as well as code for c++
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index e23c1cb..5aea0af 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -4519,7 +4519,7 @@
     "language": "c++", 
     "name": "interop_server_main", 
     "src": [
-      "test/cpp/interop/server_main.cc"
+      "test/cpp/interop/interop_server.cc"
     ], 
     "third_party": false, 
     "type": "lib"