[compiler-rt] fix failing debug_locate.cc test due to a leak
[compiler-rt] fix failing debug_locate.cc test due to a leak

New test from r218481 fails on Linux due to LeakSanitizer reporting a leak, this patch frees the memory properly. 



git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@218483 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt