Change tooltipSource directive to use [style.cursor]
Change tooltipSource directive to use [style.cursor]

Using [attr.style] to set the cursor pointer prevented any additional inline [style]s from being added to template elements with the tooltipSource directive.

PiperOrigin-RevId: 187616023

angulardart/angular_components,angulardart/angular_components,angulardart/angular_components