Enable profiling in passthrough mode.

Bug: 32141398
Test: hidl_test
Change-Id: I9c9d3855b28f555a8edf283289e426c0bb8ce3d7
diff --git a/AST.h b/AST.h
index 3408380..50f69b3 100644
--- a/AST.h
+++ b/AST.h
@@ -206,6 +206,8 @@
         SYNC_CALLBACK_EXIT,
         ASYNC_CALLBACK_ENTRY,
         ASYNC_CALLBACK_EXIT,
+        PASSTHROUGH_ENTRY,
+        PASSTHROUGH_EXIT,
     };
 
     status_t generateCppInstrumentationCall(