sync: move into `tokio` crate (#1705)

A step towards collapsing Tokio sub crates into a single `tokio`
crate (#1318).

The sync implementation is now provided by the main `tokio` crate.
Functionality can be opted out of by using the various net related
feature flags.

1 files changed, 7 insertions, 0 deletions

diff --git a/tokio/src/sync/tests/mod.rs b/tokio/src/sync/tests/mod.rs
new file mode 100644
index 00000000..8e627cb8
--- /dev/null
+++ b/tokio/src/sync/tests/mod.rs
@@ -0,0 +1,7 @@
+#![cfg(loom)]
+
+mod loom_atomic_waker;
+mod loom_list;
+mod loom_mpsc;
+mod loom_oneshot;
+mod loom_semaphore;