This test currently prevents us from running the test suite in valgrind but
it's not a straightforward fix. So in the meantime, skip this test when
running under valgrind.
This also brings the advantage that all tools, examples, modules, components
can also be compiled standalone out-of-tree using libpipewire from the system
Clear the hook before adding it so that we are sure the removed
callback doesn't contain garbage and cause a crash on disconnect.
Mark the removed and priv fields as private. Make sure to add the
removed callback after adding the hook.
Fixes a crash in kwin
Make sure the hook lists are emptied so that the removed callbacks
are called. The callers should really remove the hook they installed
themselves but this is a last chance to fix things up.
This tests exporting a PW_TYPE_INTERFACE_Endpoint and binding
a proxy for it through the registry, verifying that info and params
are propagated properly from one to the other
