src/vs/editor/contrib/find/browser/findDecorations.ts/FindDecorations/constructor
class FindDecorations:	constructor(editor: IActiveCodeEditor) {
		this._editor = editor;
		this._decorations = [];
		this._overviewRulerApproximateDecorations = [];
		this._findScopeDecorationIds = [];
		this._rangeHighlightDecorationId = null;
		this._highlightedDecorationId = null;
		this._startPosition = this._editor.getPosition();
	}