Add enum types for function parameters and return types#3647

daxpedda merged 2 commits intowasm-bindgen:mainwasm-bindgen/wasm-bindgen:mainfrom

ChristianIvicevic:2154-enums-in-function-signaturesChristianIvicevic/wasm-bindgen:2154-enums-in-function-signaturesCopy head branch name to clipboard