Tests the computedrole mappings defined in HTML-AAM. Most test names correspond to a unique ID defined in the spec.
These should remain in alphabetical order, and include all HTML tagnames. If a tag is not tested here, include a pointer to the file where it is tested, such as: <!-- caption -> ./table-roles.html -->
| a | b | c |
|---|---|---|
| 1 | 2 | 3 |
| 4 | 5 | 6 |
| x | y | z |