hasGC             336 tools/gcmole/gcmole.cc     Environment out = effect.hasGC() ? Environment() : Environment(*this);
hasGC             432 tools/gcmole/gcmole.cc     if (in.hasGC()) gc_.set(arg);
hasGC             482 tools/gcmole/gcmole.cc   Environment* a_env = b.hasGC() ? NULL : a.env();