[Bug c++/105222] gcc rejects valid syntax of ternary operator for lambda in requires clause

[hewillk at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105222

--- Comment #1 from 康桓瑋 <hewillk at gmail dot com> ---
gcc rejects this valid syntax with

source>:2:32: error: expected ':' before '{' token
    2 |   auto b = requires { true ? [] {} : [] {}; };
      |                                ^~
      |                                :
<source>:2:33: error: expected primary-expression before '{' token
    2 |   auto b = requires { true ? [] {} : [] {}; };
      |                                 ^
<source>:2:35: error: expected ';' before ':' token
    2 |   auto b = requires { true ? [] {} : [] {}; };
      |                                   ^~
      |                                   ;

https://godbolt.org/z/4c3PPb5Pb