* --explainFiles currently hardcoded
* Move configFileSpecs to configFile so it can be used in program later
* Explain root file inclusion reason and explain include files in the log
* Baseline explainFiles
* Fix incorrectly reporting of file list two times in --b mode
* Fix unnecessary new lines in output represented incorretly in the baseline
* More tests
* More cleaning up
* Keep listing files in same order as list files, just add explaination
* Fix double listing of file names when the program has errors
* Make diagnostic chains for file include reason
* Add explaination for the file include to diagnostics for program
* Harness ls incorrectly adding tsconfig as the root file
* Fix incorrect use of path for calculating absolute path
* Fix the root file in fourslash
* Test project service options merge
* Add config file name to matched by include explaination
* Add test for when the file changes and program is reused completely but related file information is reattached to correct location
* Handle file preprocessing diagnostics updates when program is reused and related information location changes
* Moved types to types.ts
* Refactoring and cleanup
* More cleanup
* More refatoring
* Handle synthetic imports
* Baselines after merge
* Add full implemention of Map and Set to shims
* Update default Map interface
* Remove WeakMap/WeakSet
* Add tests for set shim
* Update most usages of Map<K, true> to Set
* PR Feedback
* Fix lint issues
* Change key in fsWatchCallback
* Simpler shim, more tests
* Fix typo in collection shim
