src/vs/workbench/common/editor/textDiffEditorModel.ts/TextDiffEditorModel/constructor
class TextDiffEditorModel:	constructor(originalModel: BaseTextEditorModel, modifiedModel: BaseTextEditorModel) {
		super(originalModel, modifiedModel);

		this._originalModel = originalModel;
		this._modifiedModel = modifiedModel;

		this.updateTextDiffEditorModel();
	}