[AST] Stop evaluate constant expression if the condition expression which in...

[AST] Stop evaluate constant expression if the condition expression which in switch statement contains errors

This fix issue: https://github.com/llvm/llvm-project/issues/63453

```
constexpr int foo(unsigned char c) {
    switch (f) {
    case 0:
        return 7;
    default:
        break;
    }
    return 0;
}

static_assert(foo('d'));

```

Reviewed By: aaron.ballman, erichkeane, hokein

Differential Revision: https://reviews.llvm.org/D153296