Trailing newlines in doc strings
-----
<?php

<<<'EOF'@@{ "\n\n" }@@EOF;
<<<'EOF'@@{ "\n\n\n" }@@EOF;
<<<'EOF'@@{ "\nFoo\n\n" }@@EOF;
<<<EOF@@{ "\n\$var\n\n" }@@EOF;

<<<'EOF'@@{ "\r\n\r\n" }@@EOF;
<<<'EOF'@@{ "\r\n\r\n\r\n" }@@EOF;
<<<'EOF'@@{ "\r\nFoo\r\n\r\n" }@@EOF;
<<<EOF@@{ "\r\n\$var\r\n\r\n" }@@EOF;

-----
array(
    0: Stmt_Expression(
        expr: Scalar_String(
            value:
        )
    )
    1: Stmt_Expression(
        expr: Scalar_String(
            value:

        )
    )
    2: Stmt_Expression(
        expr: Scalar_String(
            value: Foo

        )
    )
    3: Stmt_Expression(
        expr: Scalar_Encapsed(
            parts: array(
                0: Expr_Variable(
                    name: var
                )
                1: Scalar_EncapsedStringPart(
                    value:

                )
            )
        )
    )
    4: Stmt_Expression(
        expr: Scalar_String(
            value:
        )
    )
    5: Stmt_Expression(
        expr: Scalar_String(
            value:

        )
    )
    6: Stmt_Expression(
        expr: Scalar_String(
            value: Foo

        )
    )
    7: Stmt_Expression(
        expr: Scalar_Encapsed(
            parts: array(
                0: Expr_Variable(
                    name: var
                )
                1: Scalar_EncapsedStringPart(
                    value:

                )
            )
        )
    )
)