actorcompiler should run after c++ preprocessor during the build process

It is hard, if not impossible, to create a state variable via macro expansion since macros are expanded after actorcompiler.

Start by locating the build entry points for actorcompiler and the C++ preprocessor, then trace the current ordering and how macro-expanded state variables are handled. Done means actorcompiler runs after preprocessing and a macro-created state variable can be compiled successfully, with an appropriate build or regression test.

Written by the indexing model from the issue text.