[gobject-introspection] build: Export warnlib sources as variables

[Emmanuele Bassi <ebassi src gnome org>]

commit 4926312baa5209e64a119d337bc7157b4f0a7d5b
Author: Philip Chimento <philip chimento gmail com>
Date:   Sat Jul 31 20:53:48 2021 -0700

    build: Export warnlib sources as variables
    
    This is so that GJS can use these variables in its own build files when
    including gobject-introspection as a Meson subproject. Previously we
    took the approach of using the files in their installed locations, but
    that doesn't work as a subproject.

 tests/meson.build | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/tests/meson.build b/tests/meson.build
index d5b76342..48981c60 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -18,6 +18,8 @@ test_env_common_pypath = [meson.build_root()]
 
 test_regress_sources = files('scanner/regress.c')
 test_regress_headers = files('scanner/regress.h')
+test_warnlib_sources = files('scanner/warnlib.c')
+test_warnlib_headers = files('scanner/warnlib.h')
 test_marshalling_sources = files('gimarshallingtests.c')
 test_marshalling_headers = files('gimarshallingtests.h')