Introduction of improved switch lowering.

src/IceInstARM32.h

Index: src/IceInstARM32.h
diff --git a/src/IceInstARM32.h b/src/IceInstARM32.h
index 8a7e1da3e702852ecceb9c60f8362f0c211e6044..030c194fc047660205950cef9e34cd739b0697fe 100644
--- a/src/IceInstARM32.h
+++ b/src/IceInstARM32.h
@@ -742,7 +742,7 @@ public:
   bool isUnconditionalBranch() const override {
     return getPredicate() == CondARM32::AL;
   }
-  bool repointEdge(CfgNode *OldNode, CfgNode *NewNode) override;
+  bool repointEdges(CfgNode *OldNode, CfgNode *NewNode) override;
   void emit(const Cfg *Func) const override;
   void emitIAS(const Cfg *Func) const override;
   void dump(const Cfg *Func) const override;