Handle case where nameRequired is true, but not a widget

[tombrunet]

Carolyn is updating the ARIA definitions for 1.2 and noted that the roleType was obviously outdated. The only rule that seems to be affected is Rpt_Aria_WidgetLabels_Implicit. It's set up to trigger when names are missing for 'interactive elements'. However, we aren't triggering for some non-interactive widgets.

Should we:

• Add a new rule for non-widgets?
• Modify the existing rule to also handle non-widgets and add a reasonCode to differentiate between interactive and non-interactive?
• Just change the rule to check names and not care if it's interactive or not.

[MHoov]

As of June 1

• [x] general rule description (SME & Dev)
• [x] testcases written (Dev)
• [ ] rule developed (Dev)
• [ ] message written (SME)
• [ ] help written (SME)

[tombrunet]

@tombrunet Add a testcase