add a new MachineBasicBlock::getSymbol method, replacing
the AsmPrinter::GetMBBSymbol.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94515 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp b/lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp
index c22ff75..f6a65a2 100644
--- a/lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp
+++ b/lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp
@@ -93,7 +93,7 @@
     return;
 
   case MachineOperand::MO_MachineBasicBlock:
-    O << *GetMBBSymbol(MO.getMBB()->getNumber());
+    O << *MO.getMBB()->getSymbol(OutContext);
     return;
 
   case MachineOperand::MO_ConstantPoolIndex: