Switch MIPS to new ELFTargetAsmInfo. Add few FIXMEs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53790 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/DarwinTargetAsmInfo.cpp b/lib/Target/DarwinTargetAsmInfo.cpp
index 311126d..564d1a1 100644
--- a/lib/Target/DarwinTargetAsmInfo.cpp
+++ b/lib/Target/DarwinTargetAsmInfo.cpp
@@ -32,6 +32,7 @@
                                                SectionFlags::Mergeable);
   EightByteConstantSection_ = getUnnamedSection("\t.literal8\n",
                                                 SectionFlags::Mergeable);
+
   // Note: 16-byte constant section is subtarget specific and should be provided
   // there.