Lexer errors
-----
<?php

$a = 42;
/*
$b = 24;
-----
Unterminated comment from 4:1 to 5:9
array(
    0: Expr_Assign(
        var: Expr_Variable(
            name: a
        )
        expr: Scalar_LNumber(
            value: 42
        )
    )
    1: Stmt_Nop(
        comments: array(
            0: /*
            $b = 24;
        )
    )
)
-----
<?php

$a = 42;
@@{ "\1" }@@
$b = 24;
-----
Unexpected character "@@{ "\1" }@@" (ASCII 1) from 4:1 to 4:1
array(
    0: Expr_Assign(
        var: Expr_Variable(
            name: a
        )
        expr: Scalar_LNumber(
            value: 42
        )
    )
    1: Expr_Assign(
        var: Expr_Variable(
            name: b
        )
        expr: Scalar_LNumber(
            value: 24
        )
    )
)
-----
<?php

$a = 42;
@@{ "\0" }@@
$b = 24;
-----
Unexpected null byte from 4:1 to 4:1
array(
    0: Expr_Assign(
        var: Expr_Variable(
            name: a
        )
        expr: Scalar_LNumber(
            value: 42
        )
    )
    1: Expr_Assign(
        var: Expr_Variable(
            name: b
        )
        expr: Scalar_LNumber(
            value: 24
        )
    )
)
-----
<?php

$a = 1;
@@{ "\1" }@@
$b = 2;
@@{ "\2" }@@
$c = 3;
-----
Unexpected character "@@{ "\1" }@@" (ASCII 1) from 4:1 to 4:1
Unexpected character "@@{ "\2" }@@" (ASCII 2) from 6:1 to 6:1
array(
    0: Expr_Assign(
        var: Expr_Variable(
            name: a
        )
        expr: Scalar_LNumber(
            value: 1
        )
    )
    1: Expr_Assign(
        var: Expr_Variable(
            name: b
        )
        expr: Scalar_LNumber(
            value: 2
        )
    )
    2: Expr_Assign(
        var: Expr_Variable(
            name: c
        )
        expr: Scalar_LNumber(
            value: 3
        )
    )
)
-----
<?php

if ($b) {
    $a = 1;
    /* unterminated
}
-----
Unterminated comment from 5:5 to 6:2
Syntax error, unexpected EOF from 6:2 to 6:2