Move the llvm mangler to lib/IR.

This makes it available to tools that don't link with target (like llvm-ar).

llvm-svn: 198708
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index d0d7a0a..8719701 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -27,6 +27,7 @@
 #include "llvm/CodeGen/MachineModuleInfo.h"
 #include "llvm/DebugInfo.h"
 #include "llvm/IR/DataLayout.h"
+#include "llvm/IR/Mangler.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Operator.h"
 #include "llvm/IR/Writer.h"
@@ -41,7 +42,6 @@
 #include "llvm/Support/Format.h"
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Support/Timer.h"
-#include "llvm/Target/Mangler.h"
 #include "llvm/Target/TargetFrameLowering.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Target/TargetLowering.h"