src/vs/workbench/contrib/debug/browser/debugHover.ts/DebugHoverWidget/afterRender
class DebugHoverWidget:	afterRender(positionPreference: ContentWidgetPositionPreference | null) {
		if (positionPreference) {
			// Remember where the editor placed you to keep position stable #109226
			this.positionPreference = [positionPreference];
		}
	}