swc_ecma_ast:
- Split `MemberExpr` into `MemberExpr` and `SuperPropExpr`.
- Use `Box<Expr>` for `MemberExpr.obj`.
- Use ad-hoc type for `MemberExpr.prop`.
- Use ad-hoc type for `SuperPropExpr.prop`.
- Use `Callee` instead of `ExprOrSpread` for `CallExpr`.
- Simplify types for meta property expressions.
swc_ecma_transforms_base:
- `resolver`: Handle some typescript nodes.
swc_ecma_transforms_typescript:
- `strip`: Use identifier span hygiene information for stripping types.
