t/pmc/timer.t: add scheduler features to JIT

[jkeenan]

I am transferring into Trac what was  RT #49718. That RT was closed when our JIT was deprecated, but a reference to RT #49718 remained in a TODO-ed test in t/pmc/timer.t. That TODO must be tracked in a Trac ticket.

In the original RT, chromatic noted: "At least four tests fail with the new scheduler under the JIT ... I believe that this is because the JIT core doesn't emit instructions to call Parrot_cx_handle_tasks() often enough. These tests probably won't pass until this happens."

kid51

[jkeenan]

Reviewing this old ticket today, I wonder if this line of reasoning is correct?

We ripped out our JIT. Therefore we have no scheduler under our JIT. Therefore these tests must remain TODO until such time as we have a JIT and scheduler.

Correct?

Thank you very much.

kid51