tests: Add .exp files for async tests, so they can run with Python 3.4.

tests/basics/async_await.py.exp

@@ -0,0 +1,32 @@
+4
+3
+2
+1
+0
+0
+1
+0
+0
+2
+1
+0
+0
+1
+0
+0
+3
+2
+1
+0
+0
+1
+0
+0
+2
+1
+0
+0
+1
+0
+0
+finished

tests/basics/async_await2.py.exp

@@ -0,0 +1,5 @@
+wait value: 1
+return from send: message from wait(1)
+wait got back: message from main
+x = 100
+got StopIteration

tests/basics/async_for.py.exp

@@ -0,0 +1,10 @@
+init
+aiter
+anext
+a
+anext
+b
+anext
+c
+anext
+finished

tests/basics/async_for2.py.exp

@@ -0,0 +1,36 @@
+init
+aiter
+f start: 10
+coro yielded: 11
+coro yielded: 12
+f returned: 13
+anext
+f start: 20
+coro yielded: 21
+coro yielded: 22
+f returned: 23
+x 0
+anext
+f start: 20
+coro yielded: 21
+coro yielded: 22
+f returned: 23
+x 1
+anext
+f start: 20
+coro yielded: 21
+coro yielded: 22
+f returned: 23
+x 2
+anext
+f start: 20
+coro yielded: 21
+coro yielded: 22
+f returned: 23
+x 3
+anext
+f start: 20
+coro yielded: 21
+coro yielded: 22
+f returned: 23
+finished

tests/basics/async_with.py.exp

@@ -0,0 +1,4 @@
+enter
+body
+exit
+finished

tests/basics/async_with2.py.exp

@@ -0,0 +1,17 @@
+enter
+f start: 10
+coro yielded: 11
+coro yielded: 12
+f returned: 13
+body start
+f start: 30
+coro yielded: 31
+coro yielded: 32
+body f returned: 33
+body end
+exit
+f start: 20
+coro yielded: 21
+coro yielded: 22
+f returned: 23
+finished