Recalculate call graph after inlining
Recalculate call graph after inlining

This means we can eliminate unused definitions from the generated code.
As usual, this doesn't make the generated code any faster, or the chez
compilation, but it's still good for tidiness and it does make the
generated scheme smaller.

mmhelloworld/idris-jvm,mmhelloworld/idris-jvm,mmhelloworld/idris-jvm,mmhelloworld/idris-jvm,mmhelloworld/idris-jvm,mmhelloworld/idris-jvm