Recognize crashreporter_annotations_t version 5 found on OS X 10.11

snapshot/mac/mach_o_image_annotations_reader_test_module_crashy_initializer.cc

+// Copyright 2015 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+namespace crashpad {
+namespace test {
+namespace {
+
+class CrashyClass {
+ public:
+  CrashyClass() {
+    __builtin_trap();
+  }
+};
+
+// __attribute__((used)) keeps the dead code stripper away.
+__attribute__((used)) CrashyClass g_crashy_object;
+
+}  // namespace
+}  // namespace test
+}  // namespace crashpad