// Phase 285W-Syntax-0.1: Verify weak(x) function call syntax is rejected
// Expected: Parse error with helpful message
// SSOT: docs/reference/language/lifecycle.md (weak <expr> only)

box SomeBox {
    x
}

static box Main {
    main() {
        local obj = new SomeBox()
        obj.x = 42
        local w = weak(obj)  // ❌ ERROR: Should be "weak obj"
        return 0
    }
}