Two GC bugs (one in my branch, one in both trunk and the branch) slowed down further progress in finishing the calling convention changes. But these bugs are fixed now, and Coke can finish hunting his own in partcl ;-)
In return for endless debug sessions, I compared oo5.imc and oo6.imc from examples/benchmarks - these (premature) results are promising: around half of the opcodes saved and more then 20% speedup. These two benchmarks test attribute accessor functions, where the call overhead is considerable.
