Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCDwarf.cpp b/lib/MC/MCDwarf.cpp
index 9e72757..112d7d8 100644
--- a/lib/MC/MCDwarf.cpp
+++ b/lib/MC/MCDwarf.cpp
@@ -433,7 +433,7 @@
   MCContext &context = streamer.getContext();
   const TargetAsmInfo &asmInfo = context.getTargetAsmInfo();
   int size = asmInfo.getPointerSize();
-  if (asmInfo.getStackGrowthDirection() == TargetFrameInfo::StackGrowsUp)
+  if (asmInfo.getStackGrowthDirection() == TargetFrameLowering::StackGrowsUp)
     return size;
  else
    return -size;