* Rework IR and resolver to use nested lookup tables
* Integrate types into IR
* Make components prefer IR, slimmed down AST
* Implement `export *`
* Add `@lazy` annotation and remove `--noTreeShaking`
* Add `@start` annotation and remove magic `main`
* Related refactoring, cleanup and docs
This only affects static fields that currently must have a type annotation, while it wouldn't work if there wasn't an annotated type, like on normal globals, which aren't compiled lazily, though. Must be revisted if requirements on type annotations on fields ever become relaxed.
Essentially, if the contextual type is a class with a constructor that takes zero arguments or doesn't have a constructor at all, an object literal can be used to initialize a new instance of that class with preset values.
