Annotations is a list of individual transformations to annotate a native AST with roles.

Native is the of list `transformer.Transformer` to apply to a native AST.

Normalizers is the main block of normalization rules to convert native AST to semantic UAST.

PreprocessCode is a special block of transformations that are applied at the end and can access original source code file.

Preprocessors is a block of AST preprocessing rules rules.