This reverts commit c3fafa0651afd07b6fb5905b426121b2467e16c3.
The symbols should be configured at the component level and not be global to the compiler.
This ensures we run in a clean directory, using our real distribution. It finds bugs like @internal
APIs needed to type-check in the offline compiler, as well as problems in package.json.
Also move tsc-wrapped under tools/@angular
This allows angular's build to depend on some extensions, but not on code generation, and breaks a cycle in the angular build
We now merge ts-metadata-collector into tsc-wrapped and stop publishing the former.