[gobject-introspection] meson: fix missing regress dependency on the utility gir.

[Christoph Reiter <creiter src gnome org>]

commit d2bd6390ed88a11e7fb1a16dc652aa7efd117b02
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Mon Dec 31 22:06:12 2018 +0100

    meson: fix missing regress dependency on the utility gir.

 tests/scanner/meson.build | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/tests/scanner/meson.build b/tests/scanner/meson.build
index 43b25274..e5949a60 100644
--- a/tests/scanner/meson.build
+++ b/tests/scanner/meson.build
@@ -169,7 +169,7 @@ if glib_dep.type_name() == 'pkgconfig'
     ]
   )
 
-  test_girs += custom_target('gir-utility',
+  utility_gir = custom_target('gir-utility',
     input: ['utility.c', 'utility.h'],
     output: 'Utility-1.0.gir',
     depends: [utility_lib] + typelibs,
@@ -195,11 +195,12 @@ if glib_dep.type_name() == 'pkgconfig'
       '@INPUT@',
     ]
   )
+  test_girs += utility_gir
 
   test_girs += custom_target('gir-gtkfrob',
     input: ['gtkfrob.c', 'gtkfrob.h'],
     output: 'GtkFrob-1.0.gir',
-    depends: [gtkfrob_lib] + typelibs,
+    depends: [gtkfrob_lib] + typelibs + [utility_gir],
     command: [
       python,
       girscanner,