Unused files

[DickvdBrink]

I created a small program and it checks which files are actually used. If I remove the following files everything still compiles and works (tsc.js and typescriptservices.js output is the same).
Am I totally messing this's up? If not, why are they on git?

edit: I can make a PR if you want see change

Changed list after some feedback

../typescript-github/src/harness/exec.ts
../typescript-github/src/harness/project.ts
../typescript-github/src/services/compiler/declarationEmitter.ts
../typescript-github/src/services/compiler/diagnostics.ts
../typescript-github/src/services/compiler/emitter.ts
../typescript-github/src/services/compiler/enumerator.ts
../typescript-github/src/services/compiler/hashTable.ts
../typescript-github/src/services/compiler/identifierWalker.ts
../typescript-github/src/services/compiler/io.ts
../typescript-github/src/services/compiler/optionsParser.ts
../typescript-github/src/services/compiler/pathUtils.ts
../typescript-github/src/services/compiler/process.ts
../typescript-github/src/services/compiler/references.ts
../typescript-github/src/services/compiler/sourceMapping.ts
../typescript-github/src/services/compiler/tsc.ts
../typescript-github/src/services/compiler/typescript.ts
../typescript-github/src/services/compiler/walkContext.ts
../typescript-github/src/services/core/arrayUtilities.ts
../typescript-github/src/services/core/debug.ts
../typescript-github/src/services/core/diagnosticCategory.ts
../typescript-github/src/services/core/diagnosticCore.ts
../typescript-github/src/services/core/diagnosticInfo.ts
../typescript-github/src/services/core/errors.ts
../typescript-github/src/services/core/integerUtilities.ts
../typescript-github/src/services/core/lineMap.ts
../typescript-github/src/services/core/linePosition.ts
../typescript-github/src/services/core/mathPrototype.ts
../typescript-github/src/services/core/references.ts
../typescript-github/src/services/core/stringTable.ts
../typescript-github/src/services/core/stringUtilities.ts
../typescript-github/src/services/formatting/indentation.ts
../typescript-github/src/services/resources/diagnosticCode.generated.ts
../typescript-github/src/services/resources/references.ts
../typescript-github/src/services/syntax/characterInfo.ts
../typescript-github/src/services/syntax/constants.ts
../typescript-github/src/services/syntax/emitter.ts
../typescript-github/src/services/syntax/formattingOptions.ts
../typescript-github/src/services/syntax/incrementalParser.ts
../typescript-github/src/services/syntax/languageVersion.ts
../typescript-github/src/services/syntax/parser.ts
../typescript-github/src/services/syntax/prettyPrinter.ts
../typescript-github/src/services/syntax/references.ts
../typescript-github/src/services/syntax/scanner.ts
../typescript-github/src/services/syntax/scannerUtilities.generated.ts
../typescript-github/src/services/syntax/slidingWindow.ts
../typescript-github/src/services/syntax/syntax.ts
../typescript-github/src/services/syntax/syntaxCursor.ts
../typescript-github/src/services/syntax/syntaxDedenter.ts
../typescript-github/src/services/syntax/syntaxElement.ts
../typescript-github/src/services/syntax/syntaxFacts.ts
../typescript-github/src/services/syntax/syntaxFacts2.ts
../typescript-github/src/services/syntax/syntaxGenerator.ts
../typescript-github/src/services/syntax/syntaxIndenter.ts
../typescript-github/src/services/syntax/syntaxInterfaces.generated.ts
../typescript-github/src/services/syntax/syntaxKind.ts
../typescript-github/src/services/syntax/syntaxList.ts
../typescript-github/src/services/syntax/syntaxNodeInvariantsChecker.ts
../typescript-github/src/services/syntax/syntaxNodeOrToken.ts
../typescript-github/src/services/syntax/syntaxNodes.concrete.generated.ts
../typescript-github/src/services/syntax/syntaxNodes.interfaces.generated.ts
../typescript-github/src/services/syntax/syntaxToken.ts
../typescript-github/src/services/syntax/syntaxTree.ts
../typescript-github/src/services/syntax/syntaxTrivia.ts
../typescript-github/src/services/syntax/syntaxTriviaList.ts
../typescript-github/src/services/syntax/syntaxUtilities.ts
../typescript-github/src/services/syntax/syntaxVisitor.generated.ts
../typescript-github/src/services/syntax/syntaxWalker.generated.ts
../typescript-github/src/services/syntax/testUtilities.ts
../typescript-github/src/services/syntax/unicode.ts
../typescript-github/src/services/syntax/utilities.generated.ts
../typescript-github/src/services/text/characterCodes.ts
../typescript-github/src/services/text/lineMap.ts
../typescript-github/src/services/text/references.ts
../typescript-github/src/services/text/scriptSnapshot.ts
../typescript-github/src/services/text/text.ts
../typescript-github/src/services/text/textChangeRange.ts
../typescript-github/src/services/text/textFactory.ts
../typescript-github/src/services/text/textSpan.ts
../typescript-github/src/services/text/textUtilities.ts

[DanielRosenwasser]

I'm pretty sure @CyrusNajmabadi uses a lot of these files in prototyping incremental parsing functionality.

[RyanCavanaugh]

I believe instrumenter.ts is used in jake tsc-instrumented, so you might want to double-check that your script hits all of our jake targets

[DickvdBrink]

@RyanCavanaugh, ouch thanks my mistake.. updated the list above (it is now 2 items smaller because of the instrumented). List is still quite large, I will check if I missed some more targets, thanks!

[DickvdBrink]

Don't think it is necessary to keep this one open. It was more meant as a FYI