[Bug]: xml comment uncompleted

[JuniverseCoder]

Describe the bug

when use xml language, if the comment is uncompleted, the application stuck.

To reproduce

1. language: xml
2. code:

<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
<!-- comment1 -->
<!-- comment2 -->
</settings>

3. delete the arrow in comment1

<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
<!-- comment1 --
<!-- comment2 -->
</settings>

4. cant type anything
5. See error

Version

3.4.0

OS

Windows 10

Validations

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• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
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[antonreshetov]

Closed because it was in #268