Template argument marked as "not a type name" when defined as primitive type

In the following code, the declaration of foo() is marked with the message "M is not a type name":

template<int N>
class X {};

template<int M>
class Y
{
   void foo(const X<M>& test);
};

When M is defined as class or typename instead of as primitive type, the message disappears.

Reported on the mailing list: http://lists.trolltech.com/pipermail/qt-creator/2009-November/005190.html