Use GObject-based libraries in test case/vala/11 generated vapi

Non-GObject-based libraries are not (reliably) introspectable, and this only
happens to work by accident, at the moment.

Briefly: In non-libtool mode, g-ir-scanner inspects the run-time
dependencies of a generated executable to determine the shared library name
an -l flag corresponds to.  But this generated executable only references
the libraries by *_get_type() functions.  So, if the library doesn't contain
any Gobject-based types, it is not referenced, and this inspection fails
with PECOFF binaries.  It seems that distutils doesn't currently decide to
use --as-needed, so this just happens to work on ELF.

1 files changed, 20 insertions, 3 deletions

diff --git a/test cases/vala/11 generated vapi/libfoo/foo.c b/test cases/vala/11 generated vapi/libfoo/foo.c
index 0413ac558..dd2b891fa 100644
--- a/test cases/vala/11 generated vapi/libfoo/foo.c
+++ b/test cases/vala/11 generated vapi/libfoo/foo.c
@@ -1,11 +1,28 @@
 #include "foo.h"
 
+struct _FooFoo
+{
+  GObject parent_instance;
+};
+
+G_DEFINE_TYPE (FooFoo, foo_foo, G_TYPE_OBJECT)
+
+static void
+foo_foo_class_init (FooFooClass *klass)
+{
+}
+
+static void
+foo_foo_init (FooFoo *self)
+{
+}
+
 /**
- * foo_return_success:
+ * foo_foo_return_success:
  *
  * Returns 0
  */
-int foo_return_success(void)
+int foo_foo_return_success(void)
 {
-	return 0;
+  return 0;
 }