Add crashpad_info, MachOImageAnnotationsReader, and its test

snapshot/mac/mach_o_image_reader.h

 // Copyright 2014 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,
@@ skipping 21 matching lines @@
 
 class MachOImageSegmentReader;
 class MachOImageSymbolTableReader;
 class ProcessReader;
 
 //! \brief A reader for Mach-O images mapped into another process.
 //!
 //! This class is capable of reading both 32-bit (`mach_header`/`MH_MAGIC`) and
 //! 64-bit (`mach_header_64`/`MH_MAGIC_64`) images based on the bitness of the
 //! remote process.
+//!
+//! \sa MachOImageAnnotationsReader
 class MachOImageReader {
  public:
   MachOImageReader();
   ~MachOImageReader();
 
   //! \brief Reads the Mach-O image file’s load commands from another process.
   //!
   //! This method must only be called once on an object. This method must be
   //! called successfully before any other method in this class may be called.
   //!
@@ skipping 282 matching lines @@
   // set. symbol_table_initialized_ will be valid without symbol_table_ being
   // set in modules that have no symbol table.
   mutable InitializationState symbol_table_initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(MachOImageReader);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_SNAPSHOT_MAC_MACH_O_IMAGE_READER_H_