Switch-interpreter: Reduce amount of copy-pasted code.

Test: test.py -b --host --64 --interpreter
Test: run-jdwp-tests.sh --mode=host --variant=X64 --debug
Test: run-libjdwp-tests.sh --mode=host --variant=X64 --debug --no-jit
Change-Id: I7b96a05bdaf13c16b900a0cf77ef911451cad61e
1 file changed