Rename isOperand() to isOperandOf() (and other similar methods). It always confuses me.

llvm-svn: 47872
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
index c87fb60..3be5995 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
@@ -128,7 +128,7 @@
       bool HasFlagUse = false;
       for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 
            UI != E; ++UI)
-        if (FlagVal.isOperand(*UI)) {
+        if (FlagVal.isOperandOf(*UI)) {
           HasFlagUse = true;
           NodeSUnit->FlaggedNodes.push_back(N);
           SUnitMap[N].push_back(NodeSUnit);