src/vs/editor/contrib/hover/modesGlyphHover.ts/ModesGlyphHoverWidget/onModelDecorationsChanged
class ModesGlyphHoverWidget:	public onModelDecorationsChanged(): void {
		if (this.isVisible) {
			// The decorations have changed and the hover is visible,
			// we need to recompute the displayed text
			this._hoverOperation.cancel();
			this._computer.clearResult();
			this._hoverOperation.start(HoverStartMode.Delayed);
		}
	}