Motiejus Jakštys 5fb7a1ab9c Add astgen scaffolding with ZIR data structures and first passing test ...

Introduce zir.h/zir.c with ZIR instruction types (269 tags, 56 extended
opcodes, 8-byte Data union) ported from lib/std/zig/Zir.zig, and
astgen.h/astgen.c implementing the empty-container fast path that produces
correct ZIR for empty source files.

The test infrastructure in astgen_test.zig compares C astGen() output
field-by-field against Zig's std.zig.AstGen.generate() using tag-based
dispatch, avoiding raw byte comparison since Zig's Data union has no
guaranteed in-memory layout.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-02-11 18:37:07 +00:00

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