SIL: relax the runtime effect of copy_addr

It only needs metadata if the copied type has an archetype

Author: eeckstein

lib/SIL/Utils/InstructionUtils.cpp

@@ -841,7 +841,9 @@ RuntimeEffect swift::getRuntimeEffect(SILInstruction *inst, SILType &impactType)
       return RuntimeEffect::MetaData | RuntimeEffect::Releasing;
     if (!ca->isTakeOfSrc())
       return RuntimeEffect::MetaData | RuntimeEffect::RefCounting;
-    return RuntimeEffect::MetaData;
+    if (ca->getSrc()->getType().hasArchetype())
+      return RuntimeEffect::MetaData;
+    return RuntimeEffect::NoEffect;
   }
   case SILInstructionKind::TupleAddrConstructorInst: {
     auto *ca = cast<TupleAddrConstructorInst>(inst);