Work around rustdoc bug with impls on type aliases

rust-lang/rust#44182

Author: sdroege

gstreamer/src/event.rs

@@ -133,7 +133,7 @@ impl EventRef {
     }
 }
 
-impl Event {
+impl GstRc<EventRef> {
     pub fn new_flush_start() -> FlushStartBuilder {
         assert_initialized_main_thread!();
         FlushStartBuilder::new()

gstreamer/src/message.rs

@@ -127,7 +127,7 @@ impl MessageRef {
     }
 }
 
-impl Message {
+impl GstRc<MessageRef> {
     pub fn new_eos() -> EosBuilder {
         assert_initialized_main_thread!();
         EosBuilder::new()

gstreamer/src/query.rs

@@ -27,7 +27,7 @@ unsafe impl MiniObject for QueryRef {
     type GstType = ffi::GstQuery;
 }
 
-impl Query {
+impl GstRc<QueryRef> {
     pub fn new_position(fmt: ::Format) -> Self {
         assert_initialized_main_thread!();
         unsafe { from_glib_full(ffi::gst_query_new_position(fmt.to_glib())) }