add new apis for getting/setting !dbg metadata on 
instructions.  In addition to being a convenience,
they are faster than the old apis, particularly when
not going from an MDKindID like people should be
doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99982 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 00a98fb..2f1a063 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -2014,7 +2014,8 @@
       // FIXME : Lift this restriction.
       if (MInsn->getNumOperands() != 3)
         continue;
-      DIVariable DV((MDNode*)(MInsn->getOperand(MInsn->getNumOperands() - 1).getMetadata()));
+      DIVariable DV((MDNode*)(MInsn->getOperand(MInsn->getNumOperands()
+                                                - 1).getMetadata()));
       if (DV.getTag() == dwarf::DW_TAG_arg_variable)  {
         // FIXME Handle inlined subroutine arguments.
         DbgVariable *ArgVar = new DbgVariable(DV, MInsn, NULL);