[CodeGen] Print jump-table index operands as %jump-table.0 in both MIR and debug output

Work towards the unification of MIR and debug output by printing `%jump-table.0` instead of `<jt#0>`.

Only debug syntax is affected.

llvm-svn: 320566
diff --git a/llvm/lib/CodeGen/MachineOperand.cpp b/llvm/lib/CodeGen/MachineOperand.cpp
index cd8c86e..82e635d 100644
--- a/llvm/lib/CodeGen/MachineOperand.cpp
+++ b/llvm/lib/CodeGen/MachineOperand.cpp
@@ -14,6 +14,7 @@
 #include "llvm/CodeGen/MachineOperand.h"
 #include "llvm/Analysis/Loads.h"
 #include "llvm/CodeGen/MIRPrinter.h"
+#include "llvm/CodeGen/MachineJumpTableInfo.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/TargetInstrInfo.h"
 #include "llvm/CodeGen/TargetRegisterInfo.h"
@@ -523,7 +524,7 @@
     break;
   }
   case MachineOperand::MO_JumpTableIndex:
-    OS << "<jt#" << getIndex() << '>';
+    OS << printJumpTableEntryReference(getIndex());
     break;
   case MachineOperand::MO_GlobalAddress:
     OS << "<ga:";