Casts
-----
<?php
(array)   $a;
(bool)    $a;
(boolean) $a;
(real)    $a;
(double)  $a;
(float)   $a;
(int)     $a;
(integer) $a;
(object)  $a;
(string)  $a;
(unset)   $a;
-----
array(
    0: Expr_Cast_Array(
        expr: Expr_Variable(
            name: a
        )
    )
    1: Expr_Cast_Bool(
        expr: Expr_Variable(
            name: a
        )
    )
    2: Expr_Cast_Bool(
        expr: Expr_Variable(
            name: a
        )
    )
    3: Expr_Cast_Double(
        expr: Expr_Variable(
            name: a
        )
    )
    4: Expr_Cast_Double(
        expr: Expr_Variable(
            name: a
        )
    )
    5: Expr_Cast_Double(
        expr: Expr_Variable(
            name: a
        )
    )
    6: Expr_Cast_Int(
        expr: Expr_Variable(
            name: a
        )
    )
    7: Expr_Cast_Int(
        expr: Expr_Variable(
            name: a
        )
    )
    8: Expr_Cast_Object(
        expr: Expr_Variable(
            name: a
        )
    )
    9: Expr_Cast_String(
        expr: Expr_Variable(
            name: a
        )
    )
    10: Expr_Cast_Unset(
        expr: Expr_Variable(
            name: a
        )
    )
)