Allow ADL lookup for helper function

src/base/bittorrent/infohash.cpp

@@ -91,7 +91,7 @@ bool InfoHash::operator!=(const InfoHash &other) const
     return (m_nativeHash != other.m_nativeHash);
 }
 
-uint qHash(const InfoHash &key, uint seed)
+uint BitTorrent::qHash(const InfoHash &key, uint seed)
 {
     return qHash(static_cast<QString>(key), seed);
 }

src/base/bittorrent/infohash.h

@@ -54,8 +54,8 @@ namespace BitTorrent
         libtorrent::sha1_hash m_nativeHash;
         QString m_hashString;
     };
-}
 
-uint qHash(const BitTorrent::InfoHash &key, uint seed);
+    uint qHash(const InfoHash &key, uint seed);
+}
 
 #endif // BITTORRENT_INFOHASH_H