Steps to reproduce:

/// template vector class
template <class T>
class Vector { };

/** \defgroup typedefs Typedefs */

/// vector with floats
/// \ingroup typedefs
typedef Vector<float> FloatVector;

/// vector with doubles
/// \ingroup typedefs
typedef Vector<double> DoubleVector;

/// some class
class MyClass
{
public:
  /// some method
  void foo (FloatVector&);
};

Actual results:

The FloatVector parameter of MyClass::foo() links to Vector<T> (such that the user does not know how FloatVector relates to Vector<T>).

Expected results:

The FloatVector parameter of MyClass::foo() should link to typedef of FloatVector.

Observed with the default config file of doxygen 1.5.9