Move /src/test to /tests

tests/ui/threads-sendsync/tls-dtors-are-run-in-a-static-binary.rs

@@ -0,0 +1,22 @@
+// run-pass
+// no-prefer-dynamic
+// ignore-emscripten no threads support
+
+static mut HIT: bool = false;
+
+struct Foo;
+
+impl Drop for Foo {
+    fn drop(&mut self) {
+        unsafe { HIT = true; }
+    }
+}
+
+thread_local!(static FOO: Foo = Foo);
+
+fn main() {
+    std::thread::spawn(|| {
+        FOO.with(|_| {});
+    }).join().unwrap();
+    assert!(unsafe { HIT });
+}