Add support for -fuse-ld=.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194328 91177308-0d34-0410-b5e6-96231b3b80d8
Add explicit target to the fuse_ld.c test.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194329 91177308-0d34-0410-b5e6-96231b3b80d8
Correctly set the target in fuse_ld.c correctly...



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194330 91177308-0d34-0410-b5e6-96231b3b80d8