eric/M2compiler-V3

Upphovsman	SHA1 Meddelande	Datum
Eric Streit	f593a8ff1d lower L7: scope-aware proc lookup, per-unit globals, qualified proc vars	1 vecka sedan
Eric Streit	4cc3a0e293 lower L7: working per-unit flip, whole-session tables + hash index	1 vecka sedan
Eric Streit	a3ef897134 fix: make Lower V3-legal and stop the fixpoint masking errors	1 vecka sedan
Eric Streit	d30abfd182 lower L7 (start): session re-emit mechanism	1 vecka sedan
Eric Streit	2ebd40e557 lower L3: procedures self-host (flatten Lower proc table)	1 vecka sedan
Eric Streit	192e63871b lower phase slice 0: re-emit mechanism + scalar L0 subset	1 vecka sedan