        
        assertTransform(
            statement: statement,
            into: .compound([
                .variableDeclaration(identifier: "a",
                                     type: "A",
                                     initialization: Expression.identifier("_a").typed("A"))
            ])
        ); assertNotifiedChange()
    }
    
    func testDontPromoteUninitializedConstants() {
        let statement = Statement
            .compound([
                .variableDeclaration(identifier: "a",