[ELF] Unit tests for -o and --noinhibit-exec.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@205735 91177308-0d34-0410-b5e6-96231b3b80d8
No else after return.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@205736 91177308-0d34-0410-b5e6-96231b3b80d8
Early continue to reduce nesting.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@205737 91177308-0d34-0410-b5e6-96231b3b80d8
[PECOFF] Fix common symbol alignment.

Differential Revision: http://reviews.llvm.org/D3322

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@205826 91177308-0d34-0410-b5e6-96231b3b80d8