ZapBlock          532 src/spaces.cc      ZapBlock(base, CodePageGuardStartOffset());
ZapBlock          533 src/spaces.cc      ZapBlock(base + CodePageAreaStartOffset(), body_size);
ZapBlock          547 src/spaces.cc      ZapBlock(base, chunk_size);
ZapBlock          625 src/spaces.cc    ZapBlock(start, size);
ZapBlock         1017 src/spaces.h     void ZapBlock(Address start, size_t size);