Fix a crash on some platforms where a dSYM for a system library lists a DW_AT_mips_linkage_name for
a non-mangled function - we pass the non mangled string down through abi::__cxa_demangle and it
crashes.  Usually passing non mangled strings to abi::__cxa_demangle works out fine but not
always, apparently.



git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@121834 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed