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/Target/Mips/MipsTargetMachine.cpp b/lib/Target/Mips/MipsTargetMachine.cpp
index ec0e9b5..7a2dd1f 100644
--- a/lib/Target/Mips/MipsTargetMachine.cpp
+++ b/lib/Target/Mips/MipsTargetMachine.cpp
@@ -41,7 +41,7 @@
   DataLayout(isLittle ? std::string("e-p:32:32:32-i8:8:32-i16:16:32-n32") :
                         std::string("E-p:32:32:32-i8:8:32-i16:16:32-n32")),
   InstrInfo(*this),
-  FrameInfo(Subtarget),
+  FrameLowering(Subtarget),
   TLInfo(*this), TSInfo(*this) {
   // Abicall enables PIC by default
   if (getRelocationModel() == Reloc::Default) {