internal/pipewire: implement Registry::Destroy

This requires error handling infrastructure in Core that does not yet exist, so it is not exported for now. It has been manually tested via linkname against PipeWire.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/pipewire/core_test.go

@@ -774,3 +774,20 @@ func TestRegistryBind(t *testing.T) {
 		}, nil},
 	}.run(t)
 }
+
+func TestRegistryDestroy(t *testing.T) {
+	t.Parallel()
+
+	encodingTestCases[pipewire.RegistryDestroy, *pipewire.RegistryDestroy]{
+		{"sample", []byte{
+			/* size: rest of data*/ 0x10, 0, 0, 0,
+			/* type: Struct */ 0xe, 0, 0, 0,
+			/* size: 4 bytes */ 4, 0, 0, 0,
+			/* type: Int */ 4, 0, 0, 0,
+			/* value: 0xbad */ 0xad, 0xb, 0, 0,
+			/* padding */ 0, 0, 0, 0,
+		}, pipewire.RegistryDestroy{
+			ID: 0xbad,
+		}, nil},
+	}.run(t)
+}