Deprecate `@UseTechnicalNames`

[mpkorstanje]

With the deprecation of the JUnitPlatform runner in favor of @Suite support (8ac3dfb) UseTechnicalNames should also be deprecated.

In brief using @UseTechnicalNames would instruct the JUnitPlatform runner to use class and/or method names in JUnit4 test descriptions using the information contained in the Junit5 TestIndentifiers.

Reasons for deprecation:

1. I do not see a usecase where other implementations that use the junit-platform-suite-api would benefit from UseTechnicalNames.
2. UseTechnicalNames is specific to to the Junit Platform runner and should not have been included in the suite-api.
3. The JUnit Platform Suite Engine provides TestIndentifiers as part of the JUnit Platform. Users of the JUnit Platform can reconstruct the technical names in the same way the JUnitPlatform runner did.

[marcphilipp]

Team decision: Deprecate @UseTechnicalNames since it no longer has any effect (when not using the JUnitPlatform runner).

[StepanTuchin98]

Hello @sbrannen and @mpkorstanje!
I have found the case, where I need to have technical names instead DisplayName.

The team's Developers copy pasted DisplayName, so multiple tests have the same Name and ClassName.
From my point, I need to get all the info from the report like:
ClassName#TestName -> time of execution

As for now, the testcases have the same names, that's my metric is not clear.

Is there a way to say Junit5 to use Method Name instead DisplayName?

I suppose some listener can be overridden and changed or added some custom field into the test.