Set field with more checks

Author: elsh

lib/SILOptimizer/IPO/CrossModuleOptimization.cpp

@@ -158,7 +158,9 @@ class InstructionVisitor : public SILCloner<InstructionVisitor> {
 
   static void makeTypesUsableFromInline(SILInstruction *I,
                                         CrossModuleOptimization &CMS) {
-    I->getFunction()->getTypeExpansionContext().setIsPostAbstraction();
+    auto mod = I->getModule().getSwiftModule();
+    auto pkgOptIn = mod->serializePackageEnabled() && mod->isResilient();
+    I->getFunction()->getTypeExpansionContext().setIsPostAbstraction(pkgOptIn);
     InstructionVisitor visitor(I, CMS);
     visitor.visit(I);
     visitor.result->eraseFromParent();