Breaks yield from syntax

[Petah]

When using yield from like:

<?php
class Test2 {
    public function foo() {
        yield 1;
    }

    public function bar() {
        yield from $this->foo();
    }
}

This extension removed the space between from and $this:

<?php
class Test2
{
    public function foo()
    {
        yield 1;
    }

    public function bar()
    {
        yield from$this->foo();
    }
}