eric/M2compiler-V3: I continue to work on my Modula-2 compiler. This one is more elaborate. Wip. @ 41f1c73780dced19ecf881d7c4b3436794b6fce6

Eric Streit c916ece9a9 two-phase slice 8: CASE and WITH statement AST		vor 1 Woche
..
AST.def	27e5c088ba two-phase slice 4a: build NkCall nodes and unary NOT	vor 1 Woche
AST.mod	53943fa2fe AST module (Stage A) + fix array-of-record element stride	vor 2 Wochen
FileIO.def	a613e7b767 Forward module-level variables, expression result suffixes, library	vor 2 Wochen
FileIO.mod	a613e7b767 Forward module-level variables, expression result suffixes, library	vor 2 Wochen
M2.atg	c916ece9a9 two-phase slice 8: CASE and WITH statement AST	vor 1 Woche
M2.lst	c916ece9a9 two-phase slice 8: CASE and WITH statement AST	vor 1 Woche
QbeGen.def	a613e7b767 Forward module-level variables, expression result suffixes, library	vor 2 Wochen
QbeGen.mod	53943fa2fe AST module (Stage A) + fix array-of-record element stride	vor 2 Wochen
SymTab.def	a613e7b767 Forward module-level variables, expression result suffixes, library	vor 2 Wochen
SymTab.mod	a613e7b767 Forward module-level variables, expression result suffixes, library	vor 2 Wochen
TopSpeed-V3-M2.atg	6826b2e2c2 topspeed corpus: build the sidecar and validate it on TS-V3 (631/662)	vor 2 Wochen
compiler.frm	31adfc3471 Result suffixes, PIM coroutines, and a core standard library	vor 2 Wochen
parser.frm	6877b81a3b v3 step 8.1 — Redux sweep of compiler sources + lenient SYSTEM imports (103/103)	vor 3 Wochen
scanner.frm	af392e1ac6 scanner Reset: NEW(buf[i]) typed alloc (BufBlock needs a descriptor header under V3's open-array ABI)	vor 2 Wochen