Reduce AST presence in Bytecode[Interpreter]

[RobSpringer]

e.g., in SpawnData, we currently have (or will shortly have) Spawn* and Proc* elements. The Spawn* is used for TypeInfo lookup inside the interpreter and the Proc* is used for extracting the config and next functions. If instead we just passed the TypeInfos and the config and next functions, we could reduce the AST surface exposed inside BytecodeInterpreter.