Closes: web-platform-tests/interop-accessibility#167

Relates and match: w3c/aria#2405

Ambiguity: https://www.w3.org/TR/accname-1.2/#comp_host_language_label

This PR adds tests for:

• elements receiving the accessible name from host language label elements (both explicit and implicit) with role="presentation";
• elements with role=presentation that do not receive the accessible name from host language label elements (both explicit and implicit)
• elements with role=presentation that receives the accessible name from host language label elements (both explicit and implicit) due to presentational roles conflict resolution

Note: since I created tests for acc name related to presentational roles conflict resolution, I have also included tests to verify that the computed role aligns with the expected result.