[MC] MCOperand::erase returns an iterator

llvm/include/llvm/MC/MCInst.h

public:
   unsigned getNumOperands() const { return Operands.size(); }
 
   void addOperand(const MCOperand Op) { Operands.push_back(Op); }
 
   using iterator = SmallVectorImpl<MCOperand>::iterator;
   using const_iterator = SmallVectorImpl<MCOperand>::const_iterator;
 
   void clear() { Operands.clear(); }
-  void erase(iterator I) { Operands.erase(I); }
-  void erase(iterator First, iterator Last) { Operands.erase(First, Last); }
+  iterator erase(iterator I) { return Operands.erase(I); }
+  iterator erase(iterator First, iterator Last) {
+    return Operands.erase(First, Last);
+  }
   size_t size() const { return Operands.size(); }
   iterator begin() { return Operands.begin(); }
   const_iterator begin() const { return Operands.begin(); }
   iterator end() { return Operands.end(); }
   const_iterator end() const { return Operands.end(); }
 
   iterator insert(iterator I, const MCOperand &Op) {
     return Operands.insert(I, Op);