ART: Make switch back-edge suspension point consistent

Both compiled code and mterp attribute a back-edge suspend point
to the target. Make switch consistent by proactively updating
the frame's dex PC in that case.

Add another macro for reuse.

Bug: 31684812
Test: m test-art-host-run-test-911-get-stack-trace
Test: m ART_TEST_INTERPRETER=true ART_TEST_JIT=true ART_TEST_TRACE=true test-art-host
Change-Id: I9969cc4ffbc34cf1d8849938a1cd7e2c9aec462d