IRGen: Use maximal resilience expansion to lower SIL types

It looks like most or all places where we call these functions only care
about the lowered AST type, so this should be NFC.

Author: slavapestov

lib/IRGen/GenType.cpp

@@ -1434,29 +1434,25 @@ const TypeInfo &IRGenFunction::getTypeInfo(SILType T) {
 
 /// Return the SIL-lowering of the given type.
 SILType IRGenModule::getLoweredType(AbstractionPattern orig, Type subst) const {
-  // FIXME: Expansion
   return getSILTypes().getLoweredType(orig, subst,
-                                      ResilienceExpansion::Minimal);
+                                      ResilienceExpansion::Maximal);
 }
 
 /// Return the SIL-lowering of the given type.
 SILType IRGenModule::getLoweredType(Type subst) const {
-  // FIXME: Expansion
   return getSILTypes().getLoweredType(subst,
-                                      ResilienceExpansion::Minimal);
+                                      ResilienceExpansion::Maximal);
 }
 
 /// Return the SIL-lowering of the given type.
 const Lowering::TypeLowering &IRGenModule::getTypeLowering(SILType type) const {
-  // FIXME: Expansion
   return getSILTypes().getTypeLowering(type,
-                                       ResilienceExpansion::Minimal);
+                                       ResilienceExpansion::Maximal);
 }
 
 bool IRGenModule::isTypeABIAccessible(SILType type) const {
-  // FIXME: Expansion
   return getSILModule().isTypeABIAccessible(type,
-                                            ResilienceExpansion::Minimal);
+                                            ResilienceExpansion::Maximal);
 }
 
 /// Get a pointer to the storage type for the given type.  Note that,