add Emacs tag and fix some comment error in file headers

llvm-svn: 150775
diff --git a/llvm/lib/Target/Mips/MipsJITInfo.cpp b/llvm/lib/Target/Mips/MipsJITInfo.cpp
index b15d290..30ee08a 100644
--- a/llvm/lib/Target/Mips/MipsJITInfo.cpp
+++ b/llvm/lib/Target/Mips/MipsJITInfo.cpp
@@ -1,4 +1,4 @@
-//===- MipsJITInfo.cpp - Implement the JIT interfaces for the Mips target -===//
+//===-- MipsJITInfo.cpp - Implement the Mips JIT Interface -----*- C++ -*--===//
 //
 //                     The LLVM Compiler Infrastructure
 //