- cl-typeck: Add modules, intrinsic types, unify definition ids
- cl-ast: make attribute lists `Default`
- cl-structures: Add functions to iterate through a pool
- cl-repl: Create an example REPL for the type checker
- Refactor for cl-structures intern pool
- Create a list of types the compiler is supposed to care about/have implementations for (Intrinsic/primitive types)
- Add modules and projects (the sym equivalent of ast::File)
- Flesh out value definitions
- TODO: Create an IR for statements and expressions, and lower the AST into it
