src/vs/editor/common/services/editorSimpleWorker.ts/EditorSimpleWorker/_modelsAreIdentical
class EditorSimpleWorker:	private static _modelsAreIdentical(original: ICommonModel | ITextModel, modified: ICommonModel | ITextModel): boolean {
		const originalLineCount = original.getLineCount();
		const modifiedLineCount = modified.getLineCount();
		if (originalLineCount !== modifiedLineCount) {
			return false;
		}
		for (let line = 1; line <= originalLineCount; line++) {
			const originalLine = original.getLineContent(line);
			const modifiedLine = modified.getLineContent(line);
			if (originalLine !== modifiedLine) {
				return false;
			}
		}
		return true;
	}