Ordering forward declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97626 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/CodeGen/MachineOperand.h b/include/llvm/CodeGen/MachineOperand.h
index f1f9f30..0978057 100644
--- a/include/llvm/CodeGen/MachineOperand.h
+++ b/include/llvm/CodeGen/MachineOperand.h
@@ -19,14 +19,14 @@
 
 namespace llvm {
   
-class ConstantFP;
 class BlockAddress;
-class MachineBasicBlock;
+class ConstantFP;
 class GlobalValue;
+class MachineBasicBlock;
 class MachineInstr;
-class TargetMachine;
 class MachineRegisterInfo;
 class MDNode;
+class TargetMachine;
 class raw_ostream;
   
 /// MachineOperand class - Representation of each machine instruction operand.