support destructuring assignment with AwaitExpression #4378

Job	Run time
unit	1m 40s
validate-legacy-node	9s
lint	2m 46s
basic	2m 30s
integration (ubuntu-latest, 10.x, a)	24m 5s
integration (ubuntu-latest, 10.x, b)	28m 5s
integration (ubuntu-latest, 19.x, a)	20m 10s
integration (ubuntu-latest, 19.x, b)	20m 9s
integration (windows-latest, 10.x, a)	36m 36s
integration (windows-latest, 10.x, b)	26m 53s
integration (windows-latest, 19.x, a)	17m 8s
integration (windows-latest, 19.x, b)	26m 2s
integration (macos-latest, 10.x, a)	17m 48s
integration (macos-latest, 10.x, b)	18m 12s
integration (macos-latest, 19.x, a)	22m 6s
integration (macos-latest, 19.x, b)	17m 31s
integration (ubuntu-latest, 18.x, a)	16m 57s
integration (ubuntu-latest, 16.x, a)	31m 19s
integration (ubuntu-latest, 14.x, a)	20m 50s
integration (ubuntu-latest, 12.x, a)	24m 49s
	6h 15m 45s

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