[IRGen] Assert on retaining noncopyable.

Author: nate-chandler

lib/IRGen/IRGenSIL.cpp

@@ -5109,6 +5109,7 @@ void IRGenSILFunction::visitCondBranchInst(swift::CondBranchInst *i) {
 }
 
 void IRGenSILFunction::visitRetainValueInst(swift::RetainValueInst *i) {
+  assert(!i->getOperand()->getType().isMoveOnly());
   Explosion in = getLoweredExplosion(i->getOperand());
   Explosion out;
   cast<LoadableTypeInfo>(getTypeInfo(i->getOperand()->getType()))
@@ -5119,6 +5120,7 @@ void IRGenSILFunction::visitRetainValueInst(swift::RetainValueInst *i) {
 
 void IRGenSILFunction::visitRetainValueAddrInst(swift::RetainValueAddrInst *i) {
   SILValue operandValue = i->getOperand();
+  assert(!operandValue->getType().isMoveOnly());
   Address addr = getLoweredAddress(operandValue);
   SILType addrTy = operandValue->getType();
   SILType objectT = addrTy.getObjectType();