[clang-tidy] `readability-braces-around-statements` not detected `else containing if` without braces

[GINN-Imp]

https://godbolt.org/z/3TKjKen34

int a,b,c;
int main(){
    if(a){
        c=1;
    }
    else                                //The expected warning position
        if(b){ c = 0; }

    return 0;
}

[llvmbot]

@llvm/issue-subscribers-clang-tidy

Author: None (GINN-Imp)

https://godbolt.org/z/3TKjKen34 ```c int a,b,c; int main(){ if(a){ c=1; } else //The expected warning position if(b){ c = 0; }

return 0;

}

</details>

[vbvictor]

It probably thinks that this case should be formatted like this:

int a, b, c;
int main() {
  if (a) {
    c = 1;
  } else if (b) { // No new braces needed
    c = 0;
  }

  return 0;
}

This check needs an option whether to interpret else if as one construct or else and if separately thus inserting braces