Add missing includes/decls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143722 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Target/TargetCallingConv.h

@@ -14,6 +14,11 @@
 #ifndef LLVM_TARGET_TARGETCALLINGCONV_H
 #define LLVM_TARGET_TARGETCALLINGCONV_H
 
+#include "llvm/CodeGen/ValueTypes.h"
+#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/MathExtras.h"
+#include <string>
+
 namespace llvm {
 
 namespace ISD {

include/llvm/Target/TargetOptions.h

@@ -17,6 +17,7 @@
 
 namespace llvm {
   class MachineFunction;
+  class StringRef;
 
   // Possible float ABI settings. Used with FloatABIType in TargetOptions.h.
   namespace FloatABI {