== should format ==
switch (x) {
    case SyntaxKind.A:
        if (condition) {
            return 1234;
        }
        // Something something something
        // Something else
        // falls-through

    case SyntaxKind.B:
        return "cool"
}

[expect]
switch (x) {
    case SyntaxKind.A:
        if (condition) {
            return 1234;
        }
        // Something something something
        // Something else
        // falls-through

    case SyntaxKind.B:
        return "cool";
}