Reclaim unresolved local archetypes before exiting early

Author: elsh

lib/SILOptimizer/IPO/CrossModuleOptimization.cpp

@@ -499,12 +499,16 @@ bool CrossModuleOptimization::canSerializeFunction(
       // First, visit each instruction and see if its lowered types
       // are serializalbe and track them in a map.
       visitor.visit(&inst);
-      if (!visitor.canSerializeTypesInInst(&inst))
+      if (!visitor.canSerializeTypesInInst(&inst)) {
+        M.reclaimUnresolvedLocalArchetypeDefinitions();
         return false;
+      }
       // If serializable, check if any fields in the instruction (that
       // are not covered in the visitor) can be serialized.
-      if (!canSerializeFieldsByInstructionKind(&inst, canSerializeFlags, maxDepth))
+      if (!canSerializeFieldsByInstructionKind(&inst, canSerializeFlags, maxDepth)) {
+        M.reclaimUnresolvedLocalArchetypeDefinitions();
         return false;
+      }
     }
   }
   M.reclaimUnresolvedLocalArchetypeDefinitions();