src/vs/workbench/contrib/codeEditor/browser/saveParticipants.ts/SaveParticipantsContribution/registerSaveParticipants
class SaveParticipantsContribution:	private registerSaveParticipants(): void {
		this._register(this.textFileService.files.addSaveParticipant(this.instantiationService.createInstance(TrimWhitespaceParticipant)));
		this._register(this.textFileService.files.addSaveParticipant(this.instantiationService.createInstance(CodeActionOnSaveParticipant)));
		this._register(this.textFileService.files.addSaveParticipant(this.instantiationService.createInstance(FormatOnSaveParticipant)));
		this._register(this.textFileService.files.addSaveParticipant(this.instantiationService.createInstance(FinalNewLineParticipant)));
		this._register(this.textFileService.files.addSaveParticipant(this.instantiationService.createInstance(TrimFinalNewLinesParticipant)));
	}