src/vs/editor/contrib/linkedEditing/browser/linkedEditing.ts/LinkedEditingContribution/clearRanges
class LinkedEditingContribution:	public clearRanges(): void {
		this._visibleContextKey.set(false);
		this._currentDecorations = this._editor.deltaDecorations(this._currentDecorations, []);
		if (this._currentRequest) {
			this._currentRequest.cancel();
			this._currentRequest = null;
			this._currentRequestPosition = null;
		}
	}