fix(golang): deserialization pattern for gob #1489

Job	Run time
build (javascript/express)	1m 21s
build (javascript/hapi)	16s
build (javascript/lang)	1m 22s
build (javascript/node)	15s
build (javascript/react)	27s
build (javascript/third_parties)	1m 23s
build (ruby/lang)	1m 24s
build (ruby/rails)	1m 20s
build (ruby/third_parties)	1m 20s
build (java/lang)	1m 24s
build (java/spring)	16s
build (java/android)	14s
build (java/third_parties)	32s
build (php/lang)	1m 25s
build (php/symfony)	55s
build (php/third_parties)	1m 7s
build (python/django)	52s
build (python/lang)	1m 20s
build (python/third_parties)	40s
build (go/lang)	1m 1s
build (go/gosec)	1m 25s
build (go/gorilla)	17s
build (go/third_parties)	39s
	21m 15s

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