Fix test 1935 for JIT-at-first-use.

Treat JIT-at-first-use just like non-JIT configs because
it compiles methods on the current thread instead of using
the ThreadPool affected by Jit::Start()/Stop().

Test: testrunner.py --jit -t 1935
Test: testrunner.py --jit --runtime-option=-Jjitthreshold:0 -t 1935
Bug: 116188633
Change-Id: I51083222dc82916907b3eb577252afc8e83cc5ad
2 files changed