swc_common:
- don't emit `loc` for dummy spans
swc_ecma_transforms:
- prevent hygiene from changing key in object pattern (#369)
- fix module tests (iteration order of FxHashSet is changed)
swc_ecma_parser:
- fix parsing of arrow function (#370)
string_enum:
- #[derive(StringEnum)] now derives `Deserialize`
swc_ecma_ast:
- implement deserialize for ast nodes.
- change ast to make it serialized / deserialized correctly
swc_ecma_parser:
- jsx, test262, typescript tests now verify serialization and deserialization of module
