Move async/await tests to test/ui/async-await

Author: varkor

src/test/run-pass/async-await.rs renamed to src/test/ui/async-await/async-await.rs

@@ -1,3 +1,5 @@
+// run-pass
+
 // edition:2018
 // aux-build:arc_wake.rs
 

src/test/ui/async-fn-multiple-lifetimes.rs renamed to src/test/ui/async-await/async-fn-multiple-lifetimes.rs

@@ -1,3 +1,5 @@
+// run-pass
+
 // edition:2018
 // aux-build:arc_wake.rs
 

src/test/ui/async-fn-multiple-lifetimes.stderr renamed to src/test/ui/async-await/async-fn-multiple-lifetimes.stderr

@@ -1,7 +1,9 @@
-#![feature(async_await)]
-#![allow(unused_parens)]
+// run-pass
 
 // edition:2018
 // pp-exact
 
+#![feature(async_await)]
+#![allow(unused_parens)]
+
 fn main() { let _a = (async  { }); }

src/test/ui/async-fn-path-elision.rs renamed to src/test/ui/async-await/async-fn-path-elision.rs

@@ -1,3 +1,5 @@
+// run-pass
+
 // compile-flags: --edition=2018
 
 #![feature(async_await, await_macro)]

src/test/ui/async-fn-path-elision.stderr renamed to src/test/ui/async-await/async-fn-path-elision.stderr

@@ -0,0 +1,10 @@
+error[E0708]: `async` non-`move` closures with arguments are not currently supported
+  --> $DIR/no-args-non-move-async-closure.rs:6:13
+   |
+LL |     let _ = async |x: u8| {};
+   |             ^^^^^^^^^^^^^
+   |
+   = help: consider using `let` statements to manually capture variables by reference before entering an `async move` closure
+
+error: aborting due to previous error
+