Pass &mut ModEntry to iter_crate_map callback instead of *mut ModEntry
Use slice representation for child crate maps
Merge recent changes
Reenable crate map tests
Use slice representation for module entries in CrateMap
Use for loops in crate_map.rs
Releax lifetime of CrateMap
Use native pointer length for CrateMap LLVM globals
Use &'self str instead of raw char pointer in ModEntry
Add code for older crate map versions, bumped crate map version number