src/vs/editor/contrib/inlayHints/browser/inlayHintsController.ts/InlayHintsController/_cacheHintsForFastRestore
class InlayHintsController:	private _cacheHintsForFastRestore(model: ITextModel): void {
		const hints = this._copyInlayHintsWithCurrentAnchor(model);
		this._inlayHintsCache.set(model, hints);
	}