for testing with a release build, use
$ make tests/Fib


for testing a release build against OpenJDK output, use
$ make tests/Fib.test


for testing with a debug build, use edit Mate/Debug.hs and set
`mateDEBUG = True' and build again. Output is in `mate.log'

for debugging with gdb, modify Mate/MethodPool.hs and enable Debugging in
Mate/Debug.hs, then use
$ make tests/Fib.gdb
and follow the instructions in the source file.