Skip these tests when using --emit native

.. in which case the __await__ attribute is not available due to
"CIRCUITPY: no support for mp_type_native_coro_wrap" (emitglue.c)

tests/extmod/uasyncio_await_return.py

@@ -14,6 +14,13 @@ async def foo():
     return 42
 
 
+try:
+    foo().__await__
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+
 async def main():
     # Call function directly via an await
     print(await foo())

tests/extmod/uasyncio_basic.py

@@ -8,6 +8,16 @@ except ImportError:
         raise SystemExit
 
 
+async def foo():
+    return 42
+
+
+try:
+    foo().__await__
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
 try:
     import utime
 

tests/extmod/uasyncio_event_fair.py

@@ -11,6 +11,17 @@ except ImportError:
         raise SystemExit
 
 
+async def foo():
+    return 42
+
+
+try:
+    foo().__await__
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+
 async def task1(id):
     for i in range(4):
         print("sleep", id)

tests/extmod/uasyncio_gather.py

@@ -10,6 +10,17 @@ except ImportError:
         raise SystemExit
 
 
+async def foo():
+    return 42
+
+
+try:
+    foo().__await__
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+
 async def factorial(name, number):
     f = 1
     for i in range(2, number + 1):

tests/extmod/uasyncio_gather_notimpl.py

@@ -10,6 +10,17 @@ except ImportError:
         raise SystemExit
 
 
+async def foo():
+    return 42
+
+
+try:
+    foo().__await__
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+
 def custom_handler(loop, context):
     print(repr(context["exception"]))
 

tests/extmod/uasyncio_lock_cancel.py

@@ -10,6 +10,17 @@ except ImportError:
         raise SystemExit
 
 
+async def foo():
+    return 42
+
+
+try:
+    foo().__await__
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+
 async def task(i, lock, lock_flag):
     print("task", i, "start")
     try:

tests/extmod/uasyncio_wait_for_fwd.py

@@ -10,6 +10,17 @@ except ImportError:
         raise SystemExit
 
 
+async def foo():
+    return 42
+
+
+try:
+    foo().__await__
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+
 async def awaiting(t, return_if_fail):
     try:
         print("awaiting started")