Summary
- enable pide_session by default (again), with extra JVM heap for AFP tests (see also 86e429abd38d, 026de3424c39);
- discontinued old AFP test: ancient hardware with insufficient resources;
- tuned output;
- merged
- share cache for parallel sessions;
- clarified signature;
- more caching, notably for build/pide_session;
- removed pointless pide_exports: unused during "build_session" process (reverting 6a64205b491a);
- tuned --- avoid error in IntelliJ IDEA;
- simp rules for conversions
- more class operations for the sake of efficient generated code