Subzero: Fix a bug in postLower().

src/IceTargetLowering.h

Index: src/IceTargetLowering.h
diff --git a/src/IceTargetLowering.h b/src/IceTargetLowering.h
index 07d665f105b333d6f9d027db937709d074e56470..da1d3f0ae5d67c9d687416ea4ba43abb4b568e71 100644
--- a/src/IceTargetLowering.h
+++ b/src/IceTargetLowering.h
@@ -56,10 +56,8 @@ public:
   CfgNode *getNode() const { return Node; }
   bool atEnd() const { return Cur == End; }
   InstList::iterator getCur() const { return Cur; }
+  InstList::iterator getNext() const { return Next; }
   InstList::iterator getEnd() const { return End; }
-  // Adaptor to enable range-based for loops.
-  InstList::iterator begin() const { return getCur(); }
-  InstList::iterator end() const { return getEnd(); }
   void insert(Inst *Inst);
   Inst *getLastInserted() const;
   void advanceCur() { Cur = Next; }