* Added babel typescript for the core files

* Add __NEXT_VERSION

* Added noop.js to the babel taskfile

* Only include dynamic-import-node for the bin task

* Added babel-plugin-dynamic-import-node

* Use loose option to prevent Object.defineProperty

* Enable loose in preset and enable compact mode

* Disable compact and loose to compare

* Re-enable compact and loose

* Moved server/lib/utils.js to Typescript

* moved _app.js to Typescript

* Moved _error.js to Typescript

* Added argument for custom props in _app and _error

* Moved _document.js to Typescript

* updated one test

* Updated types and added a validation for _document props

* Improved types

* Fixed some types

* Updated AppType

* Fixed some tests

* Added missing import

* Removed a not very useful type

* Fix missing type

* Move @types/styled-jsx

* Fix typescript errors

The new version of Terser seems to be significantly slower than the previous.  I wanted to see what our stats PR says.

Related to [this spectrum post](https://spectrum.chat/next-js/general/next-8-minor-update-breaks-dynamic-import-in-jest-tests~1e7b58e7-e301-4ef9-9de4-eef6ed3639d4).

I'm not removing the `babel-plugin-dynamic-import-node` package as it's going to be used by #7016

* Use next.config env and packages to calculate
hashes for chunk-graph

* Remove example from testing

* remove left over import

* Tweak behavior

* Add Flying Shuttle v1

* Add serverless file restoration

* Add another message

* Update test

* Resolve page version last

* Print number of changed pages

* Remove old tests

* Re-add head build ID writing

* Change syntax appearance

* Start adding test components

* Fix react loadable manifest

* Complicate dynamic testing

* Fix first build missing head build id

* Remove flying shuttle tests

* Brought escape-string-regexp source to next

* Added Copyright comment

Closes #6939 

* Temporarily only do one pass

* Add types