src/vs/editor/browser/viewParts/minimap/minimap.ts/RenderData/constructor
class RenderData:	constructor(
		renderedLayout: MinimapLayout,
		imageData: ImageData,
		lines: MinimapLine[]
	) {
		this.renderedLayout = renderedLayout;
		this._imageData = imageData;
		this._renderedLines = new RenderedLinesCollection(
			() => MinimapLine.INVALID
		);
		this._renderedLines._set(renderedLayout.startLineNumber, lines);
	}