message: [Swift] ExistentialLayout::requiresClass is a method now
diff: @@ -5401,7 +5401,7 @@ bool SwiftASTContext::GetProtocolTypeInfo(const CompilerType &type,
  return false;
  swift::ExistentialLayout layout = swift_can_type.getExistentialLayout();
  - protocol_info.m_is_class_only = layout.requiresClass;
  + protocol_info.m_is_class_only = layout.requiresClass();
  protocol_info.m_num_protocols = layout.getProtocols().size();
  protocol_info.m_is_objc = layout.isObjC();
  protocol_info.m_is_anyobject = layout.isAnyObject();
  @@ -5418,7 +5418,7 @@ bool SwiftASTContext::GetProtocolTypeInfo(const CompilerType &type,
  // Error existential -- instance pointer only
  protocol_info.m_num_payload_words = 0;
  protocol_info.m_num_storage_words = 1;
  - } else if (layout.requiresClass) {
  + } else if (layout.requiresClass()) {
  // Class-constrained existential -- instance pointer plus witness tables
  protocol_info.m_num_payload_words = 0;
  protocol_info.m_num_storage_words = 1 + num_witness_tables;
  