[ELF] Handle misaligned ELF files properly.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@171526 91177308-0d34-0410-b5e6-96231b3b80d8
Slightly better diagnostics on duplicate symbols.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@171528 91177308-0d34-0410-b5e6-96231b3b80d8
[Driver] Error on undefined.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@171529 91177308-0d34-0410-b5e6-96231b3b80d8
[Passes][GOT] Fix style.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@171530 91177308-0d34-0410-b5e6-96231b3b80d8
Style fixes.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@171531 91177308-0d34-0410-b5e6-96231b3b80d8
[ELF] STT_GNU_IFUNC is a known symbol type, so accept it. We do not yet implement its semantics.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@171533 91177308-0d34-0410-b5e6-96231b3b80d8