Revert "Don't use a debug location for frame setup instructions in the"

This reverts 165055 and 165052 temporarily while I look at debugger
failures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165071 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp
index f480de0..11745ec 100644
--- a/lib/Target/X86/X86FrameLowering.cpp
+++ b/lib/Target/X86/X86FrameLowering.cpp
@@ -836,6 +836,8 @@
     MI->getOperand(3).setIsDead();
   }
 
+  DL = MBB.findDebugLoc(MBBI);
+
   // If there is an SUB32ri of ESP immediately before this instruction, merge
   // the two. This can be the case when tail call elimination is enabled and
   // the callee has more arguments then the caller.