enterblock        885 lib/lua/lparser.c   enterblock(fs, &bl, 0);
enterblock       1000 lib/lua/lparser.c   enterblock(fs, &bl, 1);
enterblock       1016 lib/lua/lparser.c   enterblock(fs, &bl1, 1);  /* loop block */
enterblock       1017 lib/lua/lparser.c   enterblock(fs, &bl2, 0);  /* scope block */
enterblock       1054 lib/lua/lparser.c   enterblock(fs, &bl, 0);  /* scope for declared variables */
enterblock       1117 lib/lua/lparser.c   enterblock(fs, &bl, 1);  /* scope for loop and control variables */