src/vs/workbench/contrib/codeEditor/electron-sandbox/startDebugTextMate.ts/StartDebugTextMate/_append
class StartDebugTextMate:	private _append(model: ITextModel, str: string) {
		const lineCount = model.getLineCount();
		model.applyEdits([{
			range: new Range(lineCount, Constants.MAX_SAFE_SMALL_INTEGER, lineCount, Constants.MAX_SAFE_SMALL_INTEGER),
			text: str
		}]);
	}