All symbols starting with `z' in src

• Z_ChangeTag src/doomdef.h:792
• Z_ChangeTag2 src/z_zone.c:356
• Z_CheckHeap src/z_zone.c:330
• Z_ClearZone src/z_zone.c:42
• Z_DumpHeap src/z_zone.c:268
• Z_FileDumpHeap src/z_zone.c:300
• Z_Free src/z_zone.c:99
• Z_FreeMemory src/z_zone.c:377
• Z_FreeTags src/z_zone.c:245
• Z_Init src/z_zone.c:68
• zlight src/r_local.h:267
• ZONEID src/z_zone.c:22