Remove ResilientStrategy::Fragile

Author: swiftix

include/swift/AST/Module.h

@@ -112,13 +112,7 @@ enum class ResilienceStrategy : unsigned {
   /// Non-inlineable function bodies: resilient
   ///
   /// This is the behavior with -enable-resilience.
-  Resilient,
-
-  /// Public nominal types: fragile
-  /// Non-inlineable function bodies: fragile
-  ///
-  /// This is the behavior with -sil-serialize-all.
-  Fragile
+  Resilient
 };
 
 /// The minimum unit of compilation.

lib/AST/Decl.cpp

@@ -1459,7 +1459,6 @@ bool AbstractStorageDecl::hasFixedLayout() const {
   switch (getDeclContext()->getParentModule()->getResilienceStrategy()) {
   case ResilienceStrategy::Resilient:
     return false;
-  case ResilienceStrategy::Fragile:
   case ResilienceStrategy::Default:
     return true;
   }
@@ -2217,7 +2216,6 @@ bool NominalTypeDecl::hasFixedLayout() const {
   switch (getParentModule()->getResilienceStrategy()) {
   case ResilienceStrategy::Resilient:
     return false;
-  case ResilienceStrategy::Fragile:
   case ResilienceStrategy::Default:
     return true;
   }

lib/IRGen/GenDecl.cpp

@@ -1338,8 +1338,8 @@ bool LinkEntity::isFragile(ForDefinition_t isDefinition) const {
     auto conformance = getProtocolConformance();
 
     auto conformanceModule = conformance->getDeclContext()->getParentModule();
-    auto isCompletelySerialized = conformanceModule->getResilienceStrategy() ==
-                                  ResilienceStrategy::Fragile;
+    auto isCompletelySerialized =
+        conformanceModule->getOptions().SILSerializeWitnessTables;
 
     // The conformance is fragile if it is in a -sil-serialize-all module.
     return isCompletelySerialized;

lib/SIL/SIL.cpp

@@ -54,11 +54,6 @@ FormalLinkage swift::getDeclLinkage(const ValueDecl *D) {
   case AccessLevel::Open:
     return FormalLinkage::PublicUnique;
   case AccessLevel::Internal:
-    // If we're serializing all function bodies, type metadata for internal
-    // types needs to be public too.
-    if (D->getDeclContext()->getParentModule()->getResilienceStrategy()
-        == ResilienceStrategy::Fragile)
-      return FormalLinkage::PublicUnique;
     return FormalLinkage::HiddenUnique;
   case AccessLevel::FilePrivate:
   case AccessLevel::Private:

lib/Serialization/SerializedModuleLoader.cpp

@@ -497,10 +497,6 @@ void SerializedASTFile::collectLinkLibraries(
   if (isSIB()) {
     collectLinkLibrariesFromImports(callback);
   } else {
-    if (File.getAssociatedModule()->getResilienceStrategy()
-        == ResilienceStrategy::Fragile) {
-      collectLinkLibrariesFromImports(callback);
-    }
     File.collectLinkLibraries(callback);
   }
 }