// Free the constants. This is important to do here to ensure that they are
// freed before the LeakDetector is torn down.
std::for_each(ExprConstants.map_begin(), ExprConstants.map_end(),
- DropFirst());
+ DropReferences());
std::for_each(ArrayConstants.map_begin(), ArrayConstants.map_end(),
DropFirst());
std::for_each(StructConstants.map_begin(), StructConstants.map_end(),