feat(gnovm): sync code AssignStmt - ValueDecl #8640

Job	Run time
Run Main (autocounterd) / Go Build / generated	7s
Run Main (autocounterd) / Go Linter / lint	30s
Run Main (autocounterd) / Go Test / test	32s
Run Main (docker-integration) / Go Build / generated	13s
Run Main (docker-integration) / Go Linter / lint	7s
Run Main (docker-integration) / Go Test / test	29s
Run Main (genproto) / Go Build / generated	6s
Run Main (genproto) / Go Linter / lint	46s
Run Main (genproto) / Go Test / test	52s
Run Main (genstd) / Go Build / generated	12s
Run Main (genstd) / Go Linter / lint	30s
Run Main (genstd) / Go Test / test	28s
Run Main (goscan) / Go Build / generated	8s
Run Main (goscan) / Go Linter / lint	23s
Run Main (goscan) / Go Test / test	26s
Run Main (loop) / Go Linter / lint	39s
Run Main (loop) / Go Build / generated	9s
Run Main (loop) / Go Test / test	47s
	7m 24s

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