Fix some more MCJIT PIC test XFAILs (for i386)

Patch by Dimitry Andric

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191111 91177308-0d34-0410-b5e6-96231b3b80d8
InstCombine: Remove unused argument. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191112 91177308-0d34-0410-b5e6-96231b3b80d8
Migrate addGlobalName to the .cpp file as an intermediate step
to further work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191113 91177308-0d34-0410-b5e6-96231b3b80d8