Handle function pointer parameters where the return value is a reference

- Fixes #17

cxxheaderparser/parser.py

@@ -1503,7 +1503,6 @@ class CxxParser:
 
             param = self._parse_parameter(None, Parameter)
             params.append(param)
-
             tok = self._next_token_must_be(",", ")")
             if tok.value == ")":
                 break
@@ -1812,6 +1811,11 @@ class CxxParser:
             else:
                 dtype = MoveReference(dtype)
 
+            # peek at the next token and see if it's a paren. If so, it might
+            # be a nasty function pointer
+            if self.lex.token_peek_if("("):
+                dtype = self._parse_cv_ptr(dtype, nonptr_fn)
+
         return dtype
 
     # Applies to variables and return values