Regex to convert C++ const-ref parameter signature

gistfile1.txt

I wanted an easy way to change the ordering of a bunch of
const ref function parameters in visual studio 

warning: not all corner cases are covered, use it carefully

Search for:
  (const)\s+(\w+)(&)\s+(\w+[^\w])
Replace with:
  $2 $1$3 $4
  
  
  Original:
  
  void FuncName(const typename& arg1, const typename& arg2,
                typename&& arg3,
                const typename& arg4 = defaultval) const
                
  Replaced:
                
  void FuncName(typename const& arg1, typename const& arg2,
                typename&& arg3,
                typename const& arg4 = defaultval) const