[lld] r274729 - Fix endianness issue.

[George Rimar via llvm-commits]

>template <class ELFT> void InputSectionBase<ELFT>::uncompress() {
>-  typedef typename std::conditional<ELFT::Is64Bits, Elf64_Chdr,
>-                                    Elf32_Chdr>::type Elf_Chdr;

So looks it could be just that. Remove of this typedef is enough generally to fix the issue.
New code looks better though.

George.