bpo-32684: Fix nits in tests (GH-7225) (#7231)

bpo-32684: Fix nits in tests (GH-7225) (#7231) · python/cpython@3ddee64

Original file line number	Diff line number	Diff line change
`@@ -2131,15 +2131,15 @@ async def test():`
`2131`	`2131`	`time = 0`
`2132`	`2132`	`while True:`
`2133`	`2133`	`time += 0.05`
`2134`		`-await asyncio.gather(asyncio.sleep(0.05),`
	`2134`	`+await asyncio.gather(asyncio.sleep(0.05, loop=loop),`
`2135`	`2135`	`return_exceptions=True,`
`2136`	`2136`	`loop=loop)`
`2137`	`2137`	`if time > 1:`
`2138`	`2138`	`return`
`2139`	`2139`
`2140`	`2140`	`async def main():`
`2141`		`-qwe = asyncio.Task(test())`
`2142`		`-await asyncio.sleep(0.2)`
	`2141`	`+qwe = self.new_task(loop, test())`
	`2142`	`+await asyncio.sleep(0.2, loop=loop)`
`2143`	`2143`	`qwe.cancel()`
`2144`	`2144`	`try:`
`2145`	`2145`	`await qwe`