[SILOptimizer] Add prespecialization for arbitray reference types (#58846)

* [SILOptimizer] Add prespecialization for arbitray reference types

* Fix benchmark Package.swift

* Move SimpleArray to utils

* Fix multiple indirect result case

* Remove leftover code from previous attempt

* Fix test after rebase

* Move code to compute type replacements to SpecializedFunction

* Fix ownership when OSSA is enabled

* Fixes after rebase

* Changes after rebasing

* Add feature flag for layout pre-specialization

* Fix pre_specialize-macos.swift

* Add compiler flag to benchmark build

* Fix benchmark SwiftPM flags

lib/SILOptimizer/Transforms/GenericSpecializer.cpp

@@ -65,8 +65,10 @@ static void transferSpecializeAttributeTargets(SILModule &M,
       }
       auto availability = AvailabilityInference::annotatedAvailableRangeForAttr(
           SA, M.getSwiftModule()->getASTContext());
+
       targetSILFunction->addSpecializeAttr(SILSpecializeAttr::create(
-          M, SA->getSpecializedSignature(), SA->isExported(), kind, nullptr,
+          M, SA->getSpecializedSignature(), SA->getTypeErasedParams(),
+          SA->isExported(), kind, nullptr,
           spiGroupIdent, vd->getModuleContext(), availability));
     }
   }