[Refinery] Introduce TypePropagatorAnalyzer - pointer types.

syzygy/refinery/process_state/layer_data.h

 // Copyright 2015 Google Inc. 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 39 matching lines @@
   // @returns the corresponding module id, or kNoModuleId if the signature is
   //     unknown.
   ModuleId Find(const pe::PEFile::Signature& signature) const;
 
   // Find the module id corresponding to a signature if it exists, otherwise
   // index the signature and return the newly assigned module id.
   // @param signature the module's signature.
   // @returns the corresponding module id.
   ModuleId FindOrIndex(const pe::PEFile::Signature& signature);
 
+  // Find and return the signature corresponding to a module @p id.
+  // @param id the module identifier.
+  // @param signature on success, contains the signature corresponding to module
+  //     @p id.
+  // @returns true on success, false otherwise.
   bool Find(ModuleId id, pe::PEFile::Signature* signature) const;
 
  private:
   base::hash_map<pe::PEFile::Signature, ModuleId, PESignatureHasher>
       signature_to_id_;
   std::vector<pe::PEFile::Signature> id_to_signature_;
 };
 
 }  // namespace refinery
 
 #endif  // SYZYGY_REFINERY_PROCESS_STATE_LAYER_DATA_H_