Hojun-Cho f07a032104 selfhost/cmd/w6a+w6l: rt.malloc/amalloc β grow → alloc([], n)! (β-2) ...

Phase 0 second β-batch. 6 alloc sites across 3 β grow loops:
 - selfhost/cmd/w6a/obj.ww:100,108  buf bufinit/bufgrow (amalloc)
 - selfhost/cmd/w6a/asm.ww:26,63    asm_ emitbyte/emitdatabyte text+data (rt.malloc)
 - selfhost/cmd/w6l/obj.ww:113,135  lnk emittext/emitdata text+data (rt.malloc)

Same β shape as d9f0972: `*u8 = (rt.malloc|amalloc)(_, n): *u8`
→ `[]u8 = alloc([], n)!`, inner copy bounded by the manual length
counter (b.n / textlen / datalen) unchanged, struct field stays
*u8, writeback via .ptr. Bear-trap N/A (slice .len = 0 never read).

w6a/asm.ww `import rt;` (line 15) is now dead — deferred to a
post-Phase-0 import-hygiene sweep, mirrors 368b85e.

Verified 132/132 + 995_self_rebuild byte-identity.

2026-05-21 09:38:40 +09:00

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