luaS_fix           68 lib/lua/llex.c     luaS_fix(ts);  /* reserved words are never collected */
luaS_fix           79 lib/lua/lstate.c   luaS_fix(luaS_newliteral(L, MEMERRMSG));
luaS_fix           41 lib/lua/ltm.c      luaS_fix(G(L)->tmname[i]);  /* never collect these names */