[vte] stream: test: Silence warning

[Christian Persch <chpe src gnome org>]

commit b4107da616c069bdff5c275fa37145a36cb9a373
Author: Christian Persch <chpe src gnome org>
Date:   Fri Sep 28 12:17:40 2018 +0200

    stream: test: Silence warning
    
    clang generates weird warnings for this from -Wstring-plus-int;
    silence that warning.

 src/vtestream-file.h | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/vtestream-file.h b/src/vtestream-file.h
index c8dc89b9..a21a67c9 100644
--- a/src/vtestream-file.h
+++ b/src/vtestream-file.h
@@ -1248,6 +1248,10 @@ G_END_DECLS
 
 #ifdef VTESTREAM_MAIN
 
+#ifdef __clang__
+#pragma clang diagnostic ignored "-Wstring-plus-int"
+#endif
+
 /* Some helpers. Macros rather than functions to report useful line numbers on failure. */
 
 /* Check for the file's exact contents */