* Fix var/const/let variable use before declaration
* Also retains TDZ violations present in input
* Enabled by default when treeshake is active
* Low overhead - uses existing treeshaking simulated
  execution to mark declarations as reached

* successfully run tests from #4149
without treeshake.correctVarBeforeDeclaration

* Fix pattern handling

* Handle TDZ class access

* Improve field name

* Fix TDZ caching

* Only include entry point exports after first treeshaking pass

* No longer make TDZ var access a side effect but treat as unknown value

* Remove special logic for TDZ var assignments

* Improve self-reference in declaration handling

* Deprecate treeshake.correctVarValueBeforeDeclaration

* Make deprecation non-active until next major version

* Undeprecate correctVarValueBeforeDeclaration

* Fix deoptimization regression for call expressions

* Improve coverage

Co-authored-by: Lukas Taegert-Atkinson <lukas.taegert-atkinson@tngtech.com>

…ror (#4170)

* Added maxParallelFileReads.

* Added some test for maxParallelFileReads setting.

* Added tests for queue.

* Updated tests

* Added docs.

* Fix test on Windows

Co-authored-by: Lukas Taegert-Atkinson <lukas.taegert-atkinson@tngtech.com>