Support Doxygen comment style after members

Forms /**<, /*!<, ///< and //!<.

Done with Roberto Raggi.

src/shared/cplusplus/Lexer.cpp

@@ -410,6 +410,9 @@ void Lexer::scan_helper(Token *tok)
             if (_yychar == '/' || _yychar == '!') {
                 yyinp();
 
+                if (_yychar == '<')
+                    yyinp();
+
                 if (_yychar != '\n' && std::isspace(_yychar))
                     doxy = true;
             }
@@ -435,6 +438,9 @@ void Lexer::scan_helper(Token *tok)
                 if (ch == '*' && _yychar == '/')
                     goto _Ldone;
 
+                if (_yychar == '<')
+                    yyinp();
+
                 if (! _yychar || std::isspace(_yychar))
                     doxy = true;
             }