Hojun-Cho
4fe2e25da4
Every interned symbol -- including branch labels defined via p.label -- was emitted STB_GLOBAL, so labels were collide-able across objects and the header's "GLOBAL symbols only" contract was enforced nowhere (asym.isglobal was set but never read). Labels stay interned for fixup resolution; the symtab now carries only exported definitions, undefined externs, and reloc-referenced syms (a reloc pre-pass marks those). rt/ensure.o drops from 15 emitted syms to 2. Bootstrap 991-995 hold byte-identical on the new format.