Add missing 'async' to some tests

Author: lukewagner

test/async/trap-if-block-and-sync.wast

@@ -246,17 +246,17 @@
     ))))
     (func (export "trap-if-suspend") (canon lift (core func $core "trap-if-suspend")))
     (func (export "trap-if-wait") (canon lift (core func $core "trap-if-wait")))
-    (func (export "trap-if-wait-cb") (canon lift (core func $core "trap-if-wait-cb") async (callback (func $core "unreachable-cb"))))
+    (func (export "trap-if-wait-cb") async (canon lift (core func $core "trap-if-wait-cb") async (callback (func $core "unreachable-cb"))))
     (func (export "poll-is-fine") (result u32) (canon lift (core func $core "poll-is-fine")))
-    (func (export "trap-if-invalid-callback-code") (param "invalid-code" u32) (canon lift (core func $core "trap-if-invalid-callback-code") async (callback (func $core "unreachable-cb"))))
+    (func (export "trap-if-invalid-callback-code") async (param "invalid-code" u32) (canon lift (core func $core "trap-if-invalid-callback-code") async (callback (func $core "unreachable-cb"))))
     (func (export "yield-is-fine") (result u32) (canon lift (core func $core "yield-is-fine")))
-    (func (export "yield-is-fine-cb") (result u32) (canon lift (core func $core "yield-is-fine-cb") async (callback (func $core "return-42-cb"))))
+    (func (export "yield-is-fine-cb") async (result u32) (canon lift (core func $core "yield-is-fine-cb") async (callback (func $core "return-42-cb"))))
     (func (export "yield-to-is-fine") (result u32) (canon lift (core func $core "yield-to-is-fine")))
     (func (export "switch-to-is-fine") (result u32) (canon lift (core func $core "switch-to-is-fine")))
     (func (export "resume-later-is-fine") (result u32) (canon lift (core func $core "resume-later-is-fine")))
     (func (export "trap-if-sync-call-async1") (canon lift (core func $core "trap-if-sync-call-async1")))
     (func (export "trap-if-sync-call-async2") (canon lift (core func $core "trap-if-sync-call-async2")))
-    (func (export "trap-if-async-calls-sync-and-blocks") (canon lift (core func $core "trap-if-async-calls-sync-and-blocks") async (callback (func $core "unreachable-cb"))))
+    (func (export "trap-if-async-calls-sync-and-blocks") async (canon lift (core func $core "trap-if-async-calls-sync-and-blocks") async (callback (func $core "unreachable-cb"))))
     (func (export "trap-if-sync-cancel") (canon lift (core func $core "trap-if-sync-cancel")))
     (func (export "trap-if-sync-stream-read") (canon lift (core func $core "trap-if-sync-stream-read")))
     (func (export "trap-if-sync-stream-write") (canon lift (core func $core "trap-if-sync-stream-write")))